18570195

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 38691840

約数和(自身を除く): 20121645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 63, 105, 129, 135, 189, 215, 301, 315, 387, 457, 645, 903, 945, 1161, 1371, 1505, 1935, 2285, 2709, 3199, 4113, 4515, 5805, 6855, 8127, 9597, 12339, 13545, 15995, 19651, 20565, 28791, 40635, 47985, 58953, 61695, 86373, 98255, 137557, 143955, 176859, 294765, 412671, 431865, 530577, 687785, 884295, 1238013, 2063355, 2652885, 3714039, 6190065, 18570195]

約数ペア:

[(1, 18570195), (3, 6190065), (5, 3714039), (7, 2652885), (9, 2063355), (15, 1238013), (21, 884295), (27, 687785), (35, 530577), (43, 431865), (45, 412671), (63, 294765), (105, 176859), (129, 143955), (135, 137557), (189, 98255), (215, 86373), (301, 61695), (315, 58953), (387, 47985), (457, 40635), (645, 28791), (903, 20565), (945, 19651), (1161, 15995), (1371, 13545), (1505, 12339), (1935, 9597), (2285, 8127), (2709, 6855), (3199, 5805), (4113, 4515)]