20775807

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 34122816

約数和(自身を除く): 13347009

約数列:

[1, 3, 9, 13, 39, 41, 61, 71, 117, 123, 183, 213, 369, 533, 549, 639, 793, 923, 1599, 2379, 2501, 2769, 2911, 4331, 4797, 7137, 7503, 8307, 8733, 12993, 22509, 26199, 32513, 37843, 38979, 56303, 97539, 113529, 168909, 177571, 292617, 340587, 506727, 532713, 1598139, 2308423, 6925269, 20775807]

約数ペア:

[(1, 20775807), (3, 6925269), (9, 2308423), (13, 1598139), (39, 532713), (41, 506727), (61, 340587), (71, 292617), (117, 177571), (123, 168909), (183, 113529), (213, 97539), (369, 56303), (533, 38979), (549, 37843), (639, 32513), (793, 26199), (923, 22509), (1599, 12993), (2379, 8733), (2501, 8307), (2769, 7503), (2911, 7137), (4331, 4797)]