21197742

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{207821}}^1$

素因数の和:207843

約数の個数: 16

約数和(自身を含む): 44889552

約数和(自身を除く): 23691810

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 207821, 415642, 623463, 1246926, 3532957, 7065914, 10598871, 21197742]

約数ペア:

[(1, 21197742), (2, 10598871), (3, 7065914), (6, 3532957), (17, 1246926), (34, 623463), (51, 415642), (102, 207821)]