21290360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5849}}^1$

素因数の和:5880

約数の個数: 64

約数和(自身を含む): 58968000

約数和(自身を除く): 37677640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5849, 11698, 23396, 29245, 40943, 46792, 58490, 76037, 81886, 116980, 152074, 163772, 204715, 233960, 304148, 327544, 380185, 409430, 532259, 608296, 760370, 818860, 1064518, 1520740, 1637720, 2129036, 2661295, 3041480, 4258072, 5322590, 10645180, 21290360]

約数ペア:

[(1, 21290360), (2, 10645180), (4, 5322590), (5, 4258072), (7, 3041480), (8, 2661295), (10, 2129036), (13, 1637720), (14, 1520740), (20, 1064518), (26, 818860), (28, 760370), (35, 608296), (40, 532259), (52, 409430), (56, 380185), (65, 327544), (70, 304148), (91, 233960), (104, 204715), (130, 163772), (140, 152074), (182, 116980), (260, 81886), (280, 76037), (364, 58490), (455, 46792), (520, 40943), (728, 29245), (910, 23396), (1820, 11698), (3640, 5849)]