21236916

素因数分解:

$2^2\times 3^1\times {\mathrm{409}}^1\times {\mathrm{4327}}^1$

素因数の和:4743

約数の個数: 24

約数和(自身を含む): 49685440

約数和(自身を除く): 28448524

約数列:

[1, 2, 3, 4, 6, 12, 409, 818, 1227, 1636, 2454, 4327, 4908, 8654, 12981, 17308, 25962, 51924, 1769743, 3539486, 5309229, 7078972, 10618458, 21236916]

約数ペア:

[(1, 21236916), (2, 10618458), (3, 7078972), (4, 5309229), (6, 3539486), (12, 1769743), (409, 51924), (818, 25962), (1227, 17308), (1636, 12981), (2454, 8654), (4327, 4908)]