20578964

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12457}}^1$

素因数の和:12527

約数の個数: 24

約数和(自身を含む): 41858880

約数和(自身を除く): 21279916

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12457, 24914, 49828, 87199, 174398, 348796, 734963, 1469926, 2939852, 5144741, 10289482, 20578964]

約数ペア:

[(1, 20578964), (2, 10289482), (4, 5144741), (7, 2939852), (14, 1469926), (28, 734963), (59, 348796), (118, 174398), (236, 87199), (413, 49828), (826, 24914), (1652, 12457)]