19455135

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 37847040

約数和(自身を除く): 18391905

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 43, 93, 105, 129, 139, 155, 215, 217, 301, 417, 465, 645, 651, 695, 903, 973, 1085, 1333, 1505, 2085, 2919, 3255, 3999, 4309, 4515, 4865, 5977, 6665, 9331, 12927, 14595, 17931, 19995, 21545, 27993, 29885, 30163, 41839, 46655, 64635, 89655, 90489, 125517, 139965, 150815, 185287, 209195, 452445, 555861, 627585, 926435, 1297009, 2779305, 3891027, 6485045, 19455135]

約数ペア:

[(1, 19455135), (3, 6485045), (5, 3891027), (7, 2779305), (15, 1297009), (21, 926435), (31, 627585), (35, 555861), (43, 452445), (93, 209195), (105, 185287), (129, 150815), (139, 139965), (155, 125517), (215, 90489), (217, 89655), (301, 64635), (417, 46655), (465, 41839), (645, 30163), (651, 29885), (695, 27993), (903, 21545), (973, 19995), (1085, 17931), (1333, 14595), (1505, 12927), (2085, 9331), (2919, 6665), (3255, 5977), (3999, 4865), (4309, 4515)]