21196790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1861}}^1$

素因数の和:1952

約数の個数: 32

約数和(自身を含む): 41023584

約数和(自身を除く): 19826794

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 1861, 2278, 3722, 5695, 9305, 11390, 18610, 31637, 63274, 124687, 158185, 249374, 316370, 623435, 1246870, 2119679, 4239358, 10598395, 21196790]

約数ペア:

[(1, 21196790), (2, 10598395), (5, 4239358), (10, 2119679), (17, 1246870), (34, 623435), (67, 316370), (85, 249374), (134, 158185), (170, 124687), (335, 63274), (670, 31637), (1139, 18610), (1861, 11390), (2278, 9305), (3722, 5695)]