21158710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1753}}^1$

素因数の和:1848

約数の個数: 32

約数和(自身を含む): 40917312

約数和(自身を除く): 19758602

約数列:

[1, 2, 5, 10, 17, 34, 71, 85, 142, 170, 355, 710, 1207, 1753, 2414, 3506, 6035, 8765, 12070, 17530, 29801, 59602, 124463, 149005, 248926, 298010, 622315, 1244630, 2115871, 4231742, 10579355, 21158710]

約数ペア:

[(1, 21158710), (2, 10579355), (5, 4231742), (10, 2115871), (17, 1244630), (34, 622315), (71, 298010), (85, 248926), (142, 149005), (170, 124463), (355, 59602), (710, 29801), (1207, 17530), (1753, 12070), (2414, 8765), (3506, 6035)]