221707965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{869443}}^1$

素因数の和:869468

約数の個数: 16

約数和(自身を含む): 375599808

約数和(自身を除く): 153891843

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 869443, 2608329, 4347215, 13041645, 14780531, 44341593, 73902655, 221707965]

約数ペア:

[(1, 221707965), (3, 73902655), (5, 44341593), (15, 14780531), (17, 13041645), (51, 4347215), (85, 2608329), (255, 869443)]