21424375

素因数分解:

$5^4\times 7^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 31489920

約数和(自身を除く): 10065545

約数列:

[1, 5, 7, 25, 35, 59, 83, 125, 175, 295, 413, 415, 581, 625, 875, 1475, 2065, 2075, 2905, 4375, 4897, 7375, 10325, 10375, 14525, 24485, 34279, 36875, 51625, 51875, 72625, 122425, 171395, 258125, 363125, 612125, 856975, 3060625, 4284875, 21424375]

約数ペア:

[(1, 21424375), (5, 4284875), (7, 3060625), (25, 856975), (35, 612125), (59, 363125), (83, 258125), (125, 171395), (175, 122425), (295, 72625), (413, 51875), (415, 51625), (581, 36875), (625, 34279), (875, 24485), (1475, 14525), (2065, 10375), (2075, 10325), (2905, 7375), (4375, 4897)]