21738070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1801}}^1$

素因数の和:1896

約数の個数: 32

約数和(自身を含む): 42037056

約数和(自身を除く): 20298986

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1801, 2414, 3602, 6035, 9005, 12070, 18010, 30617, 61234, 127871, 153085, 255742, 306170, 639355, 1278710, 2173807, 4347614, 10869035, 21738070]

約数ペア:

[(1, 21738070), (2, 10869035), (5, 4347614), (10, 2173807), (17, 1278710), (34, 639355), (71, 306170), (85, 255742), (142, 153085), (170, 127871), (355, 61234), (710, 30617), (1207, 18010), (1801, 12070), (2414, 9005), (3602, 6035)]