21525010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{313}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 43757784

約数和(自身を除く): 22232774

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 313, 529, 598, 626, 1058, 1495, 1565, 2645, 2990, 3130, 4069, 5290, 6877, 7199, 8138, 13754, 14398, 20345, 34385, 35995, 40690, 68770, 71990, 93587, 165577, 187174, 331154, 467935, 827885, 935870, 1655770, 2152501, 4305002, 10762505, 21525010]

約数ペア:

[(1, 21525010), (2, 10762505), (5, 4305002), (10, 2152501), (13, 1655770), (23, 935870), (26, 827885), (46, 467935), (65, 331154), (115, 187174), (130, 165577), (230, 93587), (299, 71990), (313, 68770), (529, 40690), (598, 35995), (626, 34385), (1058, 20345), (1495, 14398), (1565, 13754), (2645, 8138), (2990, 7199), (3130, 6877), (4069, 5290)]