21142587

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{359}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 28788480

約数和(自身を除く): 7645893

約数列:

[1, 3, 67, 201, 293, 359, 879, 1077, 19631, 24053, 58893, 72159, 105187, 315561, 7047529, 21142587]

約数ペア:

[(1, 21142587), (3, 7047529), (67, 315561), (201, 105187), (293, 72159), (359, 58893), (879, 24053), (1077, 19631)]