20197254819

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{77369}}^1$

素因数の和:77811

約数の個数: 32

約数和(自身を含む): 31849205760

約数和(自身を除く): 11651950941

約数列:

[1, 3, 7, 21, 31, 93, 217, 401, 651, 1203, 2807, 8421, 12431, 37293, 77369, 87017, 232107, 261051, 541583, 1624749, 2398439, 7195317, 16789073, 31024969, 50367219, 93074907, 217174783, 651524349, 961774039, 2885322117, 6732418273, 20197254819]

約数ペア:

[(1, 20197254819), (3, 6732418273), (7, 2885322117), (21, 961774039), (31, 651524349), (93, 217174783), (217, 93074907), (401, 50367219), (651, 31024969), (1203, 16789073), (2807, 7195317), (8421, 2398439), (12431, 1624749), (37293, 541583), (77369, 261051), (87017, 232107)]