19929681

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 29484000

約数和(自身を除く): 9554319

約数列:

[1, 3, 9, 89, 139, 179, 267, 417, 537, 801, 1251, 1611, 12371, 15931, 24881, 37113, 47793, 74643, 111339, 143379, 223929, 2214409, 6643227, 19929681]

約数ペア:

[(1, 19929681), (3, 6643227), (9, 2214409), (89, 223929), (139, 143379), (179, 111339), (267, 74643), (417, 47793), (537, 37113), (801, 24881), (1251, 15931), (1611, 12371)]