20655609

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 30898560

約数和(自身を除く): 10242951

約数列:

[1, 3, 13, 39, 43, 109, 113, 129, 327, 339, 559, 1417, 1469, 1677, 4251, 4407, 4687, 4859, 12317, 14061, 14577, 36951, 60931, 63167, 160121, 182793, 189501, 480363, 529631, 1588893, 6885203, 20655609]

約数ペア:

[(1, 20655609), (3, 6885203), (13, 1588893), (39, 529631), (43, 480363), (109, 189501), (113, 182793), (129, 160121), (327, 63167), (339, 60931), (559, 36951), (1417, 14577), (1469, 14061), (1677, 12317), (4251, 4859), (4407, 4687)]