21743505

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 47606400

約数和(自身を除く): 25862895

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 49, 57, 63, 95, 105, 133, 135, 147, 171, 173, 189, 245, 285, 315, 399, 441, 513, 519, 665, 735, 855, 865, 931, 945, 1197, 1211, 1323, 1557, 1995, 2205, 2565, 2595, 2793, 3287, 3591, 3633, 4655, 4671, 5985, 6055, 6615, 7785, 8379, 8477, 9861, 10899, 13965, 16435, 17955, 18165, 23009, 23355, 25137, 25431, 29583, 32697, 41895, 42385, 49305, 54495, 69027, 76293, 88749, 115045, 125685, 127155, 147915, 161063, 163485, 207081, 228879, 345135, 381465, 443745, 483189, 621243, 805315, 1035405, 1144395, 1449567, 2415945, 3106215, 4348701, 7247835, 21743505]

約数ペア:

[(1, 21743505), (3, 7247835), (5, 4348701), (7, 3106215), (9, 2415945), (15, 1449567), (19, 1144395), (21, 1035405), (27, 805315), (35, 621243), (45, 483189), (49, 443745), (57, 381465), (63, 345135), (95, 228879), (105, 207081), (133, 163485), (135, 161063), (147, 147915), (171, 127155), (173, 125685), (189, 115045), (245, 88749), (285, 76293), (315, 69027), (399, 54495), (441, 49305), (513, 42385), (519, 41895), (665, 32697), (735, 29583), (855, 25431), (865, 25137), (931, 23355), (945, 23009), (1197, 18165), (1211, 17955), (1323, 16435), (1557, 13965), (1995, 10899), (2205, 9861), (2565, 8477), (2595, 8379), (2793, 7785), (3287, 6615), (3591, 6055), (3633, 5985), (4655, 4671)]