989870102

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{21893}}^1$

素因数の和:21992

約数の個数: 32

約数和(自身を含む): 1677255552

約数和(自身を除く): 687385450

約数列:

[1, 2, 13, 26, 37, 47, 74, 94, 481, 611, 962, 1222, 1739, 3478, 21893, 22607, 43786, 45214, 284609, 569218, 810041, 1028971, 1620082, 2057942, 10530533, 13376623, 21061066, 26753246, 38071927, 76143854, 494935051, 989870102]

約数ペア:

[(1, 989870102), (2, 494935051), (13, 76143854), (26, 38071927), (37, 26753246), (47, 21061066), (74, 13376623), (94, 10530533), (481, 2057942), (611, 1620082), (962, 1028971), (1222, 810041), (1739, 569218), (3478, 284609), (21893, 45214), (22607, 43786)]