18900057

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 28748160

約数和(自身を除く): 9848103

約数列:

[1, 3, 11, 33, 41, 61, 123, 183, 229, 451, 671, 687, 1353, 2013, 2501, 2519, 7503, 7557, 9389, 13969, 27511, 28167, 41907, 82533, 103279, 153659, 309837, 460977, 572729, 1718187, 6300019, 18900057]

約数ペア:

[(1, 18900057), (3, 6300019), (11, 1718187), (33, 572729), (41, 460977), (61, 309837), (123, 153659), (183, 103279), (229, 82533), (451, 41907), (671, 28167), (687, 27511), (1353, 13969), (2013, 9389), (2501, 7557), (2519, 7503)]