20017569

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1609}}^1$

素因数の和:1665

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 12440031

約数列:

[1, 3, 11, 13, 29, 33, 39, 87, 143, 319, 377, 429, 957, 1131, 1609, 4147, 4827, 12441, 17699, 20917, 46661, 53097, 62751, 139983, 230087, 513271, 606593, 690261, 1539813, 1819779, 6672523, 20017569]

約数ペア:

[(1, 20017569), (3, 6672523), (11, 1819779), (13, 1539813), (29, 690261), (33, 606593), (39, 513271), (87, 230087), (143, 139983), (319, 62751), (377, 53097), (429, 46661), (957, 20917), (1131, 17699), (1609, 12441), (4147, 4827)]