31310019

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 51184224

約数和(自身を除く): 19874205

約数列:

[1, 3, 9, 13, 39, 41, 61, 107, 117, 123, 183, 321, 369, 533, 549, 793, 963, 1391, 1599, 2379, 2501, 4173, 4387, 4797, 6527, 7137, 7503, 12519, 13161, 19581, 22509, 32513, 39483, 57031, 58743, 84851, 97539, 171093, 254553, 267607, 292617, 513279, 763659, 802821, 2408463, 3478891, 10436673, 31310019]

約数ペア:

[(1, 31310019), (3, 10436673), (9, 3478891), (13, 2408463), (39, 802821), (41, 763659), (61, 513279), (107, 292617), (117, 267607), (123, 254553), (183, 171093), (321, 97539), (369, 84851), (533, 58743), (549, 57031), (793, 39483), (963, 32513), (1391, 22509), (1599, 19581), (2379, 13161), (2501, 12519), (4173, 7503), (4387, 7137), (4797, 6527)]