42687015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21397}}^1$

素因数の和:21431

約数の個数: 32

約数和(自身を含む): 82168320

約数和(自身を除く): 39481305

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 21397, 64191, 106985, 149779, 320955, 406543, 449337, 748895, 1219629, 2032715, 2246685, 2845801, 6098145, 8537403, 14229005, 42687015]

約数ペア:

[(1, 42687015), (3, 14229005), (5, 8537403), (7, 6098145), (15, 2845801), (19, 2246685), (21, 2032715), (35, 1219629), (57, 748895), (95, 449337), (105, 406543), (133, 320955), (285, 149779), (399, 106985), (665, 64191), (1995, 21397)]