27211821

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{379}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 44943360

約数和(自身を除く): 17731539

約数列:

[1, 3, 7, 13, 21, 39, 91, 263, 273, 379, 789, 1137, 1841, 2653, 3419, 4927, 5523, 7959, 10257, 14781, 23933, 34489, 71799, 99677, 103467, 299031, 697739, 1295801, 2093217, 3887403, 9070607, 27211821]

約数ペア:

[(1, 27211821), (3, 9070607), (7, 3887403), (13, 2093217), (21, 1295801), (39, 697739), (91, 299031), (263, 103467), (273, 99677), (379, 71799), (789, 34489), (1137, 23933), (1841, 14781), (2653, 10257), (3419, 7959), (4927, 5523)]