21103965

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24683}}^1$

素因数の和:24713

約数の個数: 24

約数和(自身を含む): 38507040

約数和(自身を除く): 17403075

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24683, 74049, 123415, 222147, 370245, 468977, 1110735, 1406931, 2344885, 4220793, 7034655, 21103965]

約数ペア:

[(1, 21103965), (3, 7034655), (5, 4220793), (9, 2344885), (15, 1406931), (19, 1110735), (45, 468977), (57, 370245), (95, 222147), (171, 123415), (285, 74049), (855, 24683)]