19401565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{617}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 24621120

約数和(自身を除く): 5219555

約数列:

[1, 5, 19, 95, 331, 617, 1655, 3085, 6289, 11723, 31445, 58615, 204227, 1021135, 3880313, 19401565]

約数ペア:

[(1, 19401565), (5, 3880313), (19, 1021135), (95, 204227), (331, 58615), (617, 31445), (1655, 11723), (3085, 6289)]