18712016

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:371

約数の個数: 40

約数和(自身を含む): 37497600

約数和(自身を除く): 18785584

約数列:

[1, 2, 4, 8, 16, 47, 94, 149, 167, 188, 298, 334, 376, 596, 668, 752, 1192, 1336, 2384, 2672, 7003, 7849, 14006, 15698, 24883, 28012, 31396, 49766, 56024, 62792, 99532, 112048, 125584, 199064, 398128, 1169501, 2339002, 4678004, 9356008, 18712016]

約数ペア:

[(1, 18712016), (2, 9356008), (4, 4678004), (8, 2339002), (16, 1169501), (47, 398128), (94, 199064), (149, 125584), (167, 112048), (188, 99532), (298, 62792), (334, 56024), (376, 49766), (596, 31396), (668, 28012), (752, 24883), (1192, 15698), (1336, 14006), (2384, 7849), (2672, 7003)]