21240438

素因数分解:

$2^1\times 3^1\times {\mathrm{271}}^1\times {\mathrm{13063}}^1$

素因数の和:13339

約数の個数: 16

約数和(自身を含む): 42640896

約数和(自身を除く): 21400458

約数列:

[1, 2, 3, 6, 271, 542, 813, 1626, 13063, 26126, 39189, 78378, 3540073, 7080146, 10620219, 21240438]

約数ペア:

[(1, 21240438), (2, 10620219), (3, 7080146), (6, 3540073), (271, 78378), (542, 39189), (813, 26126), (1626, 13063)]