21309522

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{761}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 46085760

約数和(自身を除く): 24776238

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 359, 718, 761, 1077, 1522, 2154, 2283, 4566, 4667, 9334, 9893, 14001, 19786, 28002, 29679, 59358, 273199, 546398, 819597, 1639194, 3551587, 7103174, 10654761, 21309522]

約数ペア:

[(1, 21309522), (2, 10654761), (3, 7103174), (6, 3551587), (13, 1639194), (26, 819597), (39, 546398), (78, 273199), (359, 59358), (718, 29679), (761, 28002), (1077, 19786), (1522, 14001), (2154, 9893), (2283, 9334), (4566, 4667)]