21185019

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 32411600

約数和(自身を除く): 11226581

約数列:

[1, 3, 9, 19, 57, 171, 229, 541, 687, 1623, 2061, 4351, 4869, 10279, 13053, 30837, 39159, 92511, 123889, 371667, 1115001, 2353891, 7061673, 21185019]

約数ペア:

[(1, 21185019), (3, 7061673), (9, 2353891), (19, 1115001), (57, 371667), (171, 123889), (229, 92511), (541, 39159), (687, 30837), (1623, 13053), (2061, 10279), (4351, 4869)]