28433139

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71261}}^1$

素因数の和:71290

約数の個数: 16

約数和(自身を含む): 45607680

約数和(自身を除く): 17174541

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71261, 213783, 498827, 1353959, 1496481, 4061877, 9477713, 28433139]

約数ペア:

[(1, 28433139), (3, 9477713), (7, 4061877), (19, 1496481), (21, 1353959), (57, 498827), (133, 213783), (399, 71261)]