19700211321

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:428

約数の個数: 144

約数和(自身を含む): 35404387200

約数和(自身を除く): 15704175879

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 89, 139, 147, 157, 161, 207, 267, 417, 441, 471, 483, 623, 801, 973, 1099, 1127, 1251, 1413, 1449, 1869, 2047, 2919, 3197, 3297, 3381, 3611, 4361, 5607, 6141, 6811, 7693, 8757, 9591, 9891, 10143, 10833, 12371, 13083, 13973, 14329, 18423, 20433, 21823, 22379, 23079, 25277, 28773, 32499, 37113, 39249, 41919, 42987, 61299, 65469, 67137, 69237, 75831, 86597, 97811, 100303, 111339, 125757, 128961, 152761, 156653, 176939, 196407, 201411, 227493, 259791, 284533, 293433, 300909, 321379, 458283, 469959, 501929, 530817, 606179, 684677, 779373, 853599, 880299, 902727, 964137, 1069327, 1374849, 1409877, 1505787, 1592451, 1818537, 1942247, 1991731, 2054031, 2249653, 2560797, 2892411, 3207981, 3513503, 4517361, 5455611, 5826741, 5975193, 6162093, 6748959, 9623943, 10540509, 13595729, 13942117, 15747571, 17480223, 17925579, 20246877, 24594521, 31621527, 40787187, 41826351, 44671681, 47242713, 73783563, 95170103, 122361561, 125479053, 134015043, 141728139, 221350689, 285510309, 312701767, 402045129, 856530927, 938105301, 2188912369, 2814315903, 6566737107, 19700211321]

約数ペア:

[(1, 19700211321), (3, 6566737107), (7, 2814315903), (9, 2188912369), (21, 938105301), (23, 856530927), (49, 402045129), (63, 312701767), (69, 285510309), (89, 221350689), (139, 141728139), (147, 134015043), (157, 125479053), (161, 122361561), (207, 95170103), (267, 73783563), (417, 47242713), (441, 44671681), (471, 41826351), (483, 40787187), (623, 31621527), (801, 24594521), (973, 20246877), (1099, 17925579), (1127, 17480223), (1251, 15747571), (1413, 13942117), (1449, 13595729), (1869, 10540509), (2047, 9623943), (2919, 6748959), (3197, 6162093), (3297, 5975193), (3381, 5826741), (3611, 5455611), (4361, 4517361), (5607, 3513503), (6141, 3207981), (6811, 2892411), (7693, 2560797), (8757, 2249653), (9591, 2054031), (9891, 1991731), (10143, 1942247), (10833, 1818537), (12371, 1592451), (13083, 1505787), (13973, 1409877), (14329, 1374849), (18423, 1069327), (20433, 964137), (21823, 902727), (22379, 880299), (23079, 853599), (25277, 779373), (28773, 684677), (32499, 606179), (37113, 530817), (39249, 501929), (41919, 469959), (42987, 458283), (61299, 321379), (65469, 300909), (67137, 293433), (69237, 284533), (75831, 259791), (86597, 227493), (97811, 201411), (100303, 196407), (111339, 176939), (125757, 156653), (128961, 152761)]