21551028

素因数分解:

$2^2\times 3^1\times {\mathrm{409}}^1\times {\mathrm{4391}}^1$

素因数の和:4807

約数の個数: 24

約数和(自身を含む): 50420160

約数和(自身を除く): 28869132

約数列:

[1, 2, 3, 4, 6, 12, 409, 818, 1227, 1636, 2454, 4391, 4908, 8782, 13173, 17564, 26346, 52692, 1795919, 3591838, 5387757, 7183676, 10775514, 21551028]

約数ペア:

[(1, 21551028), (2, 10775514), (3, 7183676), (4, 5387757), (6, 3591838), (12, 1795919), (409, 52692), (818, 26346), (1227, 17564), (1636, 13173), (2454, 8782), (4391, 4908)]