20243979

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4657}}^1$

素因数の和:4696

約数の個数: 32

約数和(自身を含む): 35773440

約数和(自身を除く): 15529461

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4657, 13971, 32599, 41913, 97797, 107111, 125739, 293391, 321333, 749777, 880173, 963999, 2249331, 2891997, 6747993, 20243979]

約数ペア:

[(1, 20243979), (3, 6747993), (7, 2891997), (9, 2249331), (21, 963999), (23, 880173), (27, 749777), (63, 321333), (69, 293391), (161, 125739), (189, 107111), (207, 97797), (483, 41913), (621, 32599), (1449, 13971), (4347, 4657)]