21915693820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2222687}}^1$

素因数の和:2222742

約数の個数: 48

約数和(自身を含む): 50410563840

約数和(自身を除く): 28494870020

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 2222687, 4445374, 8890748, 11113435, 22226870, 37785679, 44453740, 64457923, 75571358, 128915846, 151142716, 188928395, 257831692, 322289615, 377856790, 644579230, 755713580, 1095784691, 1289158460, 2191569382, 4383138764, 5478923455, 10957846910, 21915693820]

約数ペア:

[(1, 21915693820), (2, 10957846910), (4, 5478923455), (5, 4383138764), (10, 2191569382), (17, 1289158460), (20, 1095784691), (29, 755713580), (34, 644579230), (58, 377856790), (68, 322289615), (85, 257831692), (116, 188928395), (145, 151142716), (170, 128915846), (290, 75571358), (340, 64457923), (493, 44453740), (580, 37785679), (986, 22226870), (1972, 11113435), (2465, 8890748), (4930, 4445374), (9860, 2222687)]