21540850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{233}}^1$

素因数の和:331

約数の個数: 36

約数和(自身を含む): 41195466

約数和(自身を除く): 19654616

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 233, 430, 466, 1075, 1165, 1849, 2150, 2330, 3698, 5825, 9245, 10019, 11650, 18490, 20038, 46225, 50095, 92450, 100190, 250475, 430817, 500950, 861634, 2154085, 4308170, 10770425, 21540850]

約数ペア:

[(1, 21540850), (2, 10770425), (5, 4308170), (10, 2154085), (25, 861634), (43, 500950), (50, 430817), (86, 250475), (215, 100190), (233, 92450), (430, 50095), (466, 46225), (1075, 20038), (1165, 18490), (1849, 11650), (2150, 10019), (2330, 9245), (3698, 5825)]