20953816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1783}}^1$

素因数の和:1915

約数の個数: 32

約数和(自身を含む): 42708960

約数和(自身を除く): 21755144

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 226, 452, 904, 1469, 1783, 2938, 3566, 5876, 7132, 11752, 14264, 23179, 46358, 92716, 185432, 201479, 402958, 805916, 1611832, 2619227, 5238454, 10476908, 20953816]

約数ペア:

[(1, 20953816), (2, 10476908), (4, 5238454), (8, 2619227), (13, 1611832), (26, 805916), (52, 402958), (104, 201479), (113, 185432), (226, 92716), (452, 46358), (904, 23179), (1469, 14264), (1783, 11752), (2938, 7132), (3566, 5876)]