21321740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5701}}^1$

素因数の和:5738

約数の個数: 48

約数和(自身を含む): 51728544

約数和(自身を除く): 30406804

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5701, 11402, 22804, 28505, 57010, 62711, 96917, 114020, 125422, 193834, 250844, 313555, 387668, 484585, 627110, 969170, 1066087, 1254220, 1938340, 2132174, 4264348, 5330435, 10660870, 21321740]

約数ペア:

[(1, 21321740), (2, 10660870), (4, 5330435), (5, 4264348), (10, 2132174), (11, 1938340), (17, 1254220), (20, 1066087), (22, 969170), (34, 627110), (44, 484585), (55, 387668), (68, 313555), (85, 250844), (110, 193834), (170, 125422), (187, 114020), (220, 96917), (340, 62711), (374, 57010), (748, 28505), (935, 22804), (1870, 11402), (3740, 5701)]