20161971388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{33503}}^1$

素因数の和:33754

約数の個数: 48

約数和(自身を含む): 38770292736

約数和(自身を除く): 18608321348

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 163, 284, 326, 652, 923, 1846, 2119, 3692, 4238, 8476, 11573, 23146, 33503, 46292, 67006, 134012, 150449, 300898, 435539, 601796, 871078, 1742156, 2378713, 4757426, 5460989, 9514852, 10921978, 21843956, 30923269, 61846538, 70992857, 123693076, 141985714, 283971428, 387730219, 775460438, 1550920876, 5040492847, 10080985694, 20161971388]

約数ペア:

[(1, 20161971388), (2, 10080985694), (4, 5040492847), (13, 1550920876), (26, 775460438), (52, 387730219), (71, 283971428), (142, 141985714), (163, 123693076), (284, 70992857), (326, 61846538), (652, 30923269), (923, 21843956), (1846, 10921978), (2119, 9514852), (3692, 5460989), (4238, 4757426), (8476, 2378713), (11573, 1742156), (23146, 871078), (33503, 601796), (46292, 435539), (67006, 300898), (134012, 150449)]