17986665

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 30375936

約数和(自身を除く): 12389271

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 823, 1457, 2469, 4115, 4371, 7285, 12345, 21855, 25513, 38681, 76539, 116043, 127565, 193405, 382695, 580215, 1199111, 3597333, 5995555, 17986665]

約数ペア:

[(1, 17986665), (3, 5995555), (5, 3597333), (15, 1199111), (31, 580215), (47, 382695), (93, 193405), (141, 127565), (155, 116043), (235, 76539), (465, 38681), (705, 25513), (823, 21855), (1457, 12345), (2469, 7285), (4115, 4371)]