21354804

素因数分解:

$2^2\times 3^2\times {\mathrm{421}}^1\times {\mathrm{1409}}^1$

素因数の和:1840

約数の個数: 36

約数和(自身を含む): 54146820

約数和(自身を除く): 32792016

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 421, 842, 1263, 1409, 1684, 2526, 2818, 3789, 4227, 5052, 5636, 7578, 8454, 12681, 15156, 16908, 25362, 50724, 593189, 1186378, 1779567, 2372756, 3559134, 5338701, 7118268, 10677402, 21354804]

約数ペア:

[(1, 21354804), (2, 10677402), (3, 7118268), (4, 5338701), (6, 3559134), (9, 2372756), (12, 1779567), (18, 1186378), (36, 593189), (421, 50724), (842, 25362), (1263, 16908), (1409, 15156), (1684, 12681), (2526, 8454), (2818, 7578), (3789, 5636), (4227, 5052)]