21539483

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2281}}^1$

素因数の和:2378

約数の個数: 16

約数和(自身を含む): 26288640

約数和(自身を除く): 4749157

約数列:

[1, 7, 19, 71, 133, 497, 1349, 2281, 9443, 15967, 43339, 161951, 303373, 1133657, 3077069, 21539483]

約数ペア:

[(1, 21539483), (7, 3077069), (19, 1133657), (71, 303373), (133, 161951), (497, 43339), (1349, 15967), (2281, 9443)]