21430395

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9719}}^1$

素因数の和:9744

約数の個数: 36

約数和(自身を含む): 43215120

約数和(自身を除く): 21784725

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9719, 29157, 48595, 68033, 87471, 145785, 204099, 340165, 437355, 476231, 612297, 1020495, 1428693, 2381155, 3061485, 4286079, 7143465, 21430395]

約数ペア:

[(1, 21430395), (3, 7143465), (5, 4286079), (7, 3061485), (9, 2381155), (15, 1428693), (21, 1020495), (35, 612297), (45, 476231), (49, 437355), (63, 340165), (105, 204099), (147, 145785), (245, 87471), (315, 68033), (441, 48595), (735, 29157), (2205, 9719)]