20893635

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3491}}^1$

素因数の和:3528

約数の個数: 48

約数和(自身を含む): 43580160

約数和(自身を除く): 22686525

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3491, 5985, 10473, 17455, 24437, 31419, 52365, 66329, 73311, 122185, 157095, 198987, 219933, 331645, 366555, 464303, 596961, 994935, 1099665, 1392909, 2321515, 2984805, 4178727, 6964545, 20893635]

約数ペア:

[(1, 20893635), (3, 6964545), (5, 4178727), (7, 2984805), (9, 2321515), (15, 1392909), (19, 1099665), (21, 994935), (35, 596961), (45, 464303), (57, 366555), (63, 331645), (95, 219933), (105, 198987), (133, 157095), (171, 122185), (285, 73311), (315, 66329), (399, 52365), (665, 31419), (855, 24437), (1197, 17455), (1995, 10473), (3491, 5985)]