18616764

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 44992640

約数和(自身を除く): 26375876

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 109, 129, 172, 218, 258, 327, 331, 436, 516, 654, 662, 993, 1308, 1324, 1986, 3972, 4687, 9374, 14061, 14233, 18748, 28122, 28466, 36079, 42699, 56244, 56932, 72158, 85398, 108237, 144316, 170796, 216474, 432948, 1551397, 3102794, 4654191, 6205588, 9308382, 18616764]

約数ペア:

[(1, 18616764), (2, 9308382), (3, 6205588), (4, 4654191), (6, 3102794), (12, 1551397), (43, 432948), (86, 216474), (109, 170796), (129, 144316), (172, 108237), (218, 85398), (258, 72158), (327, 56932), (331, 56244), (436, 42699), (516, 36079), (654, 28466), (662, 28122), (993, 18748), (1308, 14233), (1324, 14061), (1986, 9374), (3972, 4687)]