21099687080

素因数分解:

$2^3\times 5^1\times {\mathrm{8941}}^1\times {\mathrm{58997}}^1$

素因数の和:67949

約数の個数: 32

約数和(自身を含む): 47480410440

約数和(自身を除く): 26380723360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8941, 17882, 35764, 44705, 58997, 71528, 89410, 117994, 178820, 235988, 294985, 357640, 471976, 589970, 1179940, 2359880, 527492177, 1054984354, 2109968708, 2637460885, 4219937416, 5274921770, 10549843540, 21099687080]

約数ペア:

[(1, 21099687080), (2, 10549843540), (4, 5274921770), (5, 4219937416), (8, 2637460885), (10, 2109968708), (20, 1054984354), (40, 527492177), (8941, 2359880), (17882, 1179940), (35764, 589970), (44705, 471976), (58997, 357640), (71528, 294985), (89410, 235988), (117994, 178820)]