199907997

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{577}}^1\times {\mathrm{2179}}^1$

素因数の和:2812

約数の個数: 16

約数和(自身を含む): 272168640

約数和(自身を除く): 72260643

約数列:

[1, 3, 53, 159, 577, 1731, 2179, 6537, 30581, 91743, 115487, 346461, 1257283, 3771849, 66635999, 199907997]

約数ペア:

[(1, 199907997), (3, 66635999), (53, 3771849), (159, 1257283), (577, 346461), (1731, 115487), (2179, 91743), (6537, 30581)]