20986670211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1471}}^1\times {\mathrm{9887}}^1$

素因数の和:11411

約数の個数: 32

約数和(自身を含む): 30973329408

約数和(自身を除く): 9986659197

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 1471, 4413, 9887, 19123, 29661, 54427, 57369, 128531, 163281, 365819, 385593, 707551, 1097457, 2122653, 4755647, 14266941, 14543777, 43631331, 189069101, 538119749, 567207303, 1614359247, 6995556737, 20986670211]

約数ペア:

[(1, 20986670211), (3, 6995556737), (13, 1614359247), (37, 567207303), (39, 538119749), (111, 189069101), (481, 43631331), (1443, 14543777), (1471, 14266941), (4413, 4755647), (9887, 2122653), (19123, 1097457), (29661, 707551), (54427, 385593), (57369, 365819), (128531, 163281)]