21339942

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1997}}^1$

素因数の和:2152

約数の個数: 32

約数和(自身を含む): 46321632

約数和(自身を除く): 24981690

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 137, 274, 411, 822, 1781, 1997, 3562, 3994, 5343, 5991, 10686, 11982, 25961, 51922, 77883, 155766, 273589, 547178, 820767, 1641534, 3556657, 7113314, 10669971, 21339942]

約数ペア:

[(1, 21339942), (2, 10669971), (3, 7113314), (6, 3556657), (13, 1641534), (26, 820767), (39, 547178), (78, 273589), (137, 155766), (274, 77883), (411, 51922), (822, 25961), (1781, 11982), (1997, 10686), (3562, 5991), (3994, 5343)]