21519390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10103}}^1$

素因数の和:10184

約数の個数: 32

約数和(自身を含む): 52379136

約数和(自身を除く): 30859746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 10103, 20206, 30309, 50515, 60618, 101030, 151545, 303090, 717313, 1434626, 2151939, 3586565, 4303878, 7173130, 10759695, 21519390]

約数ペア:

[(1, 21519390), (2, 10759695), (3, 7173130), (5, 4303878), (6, 3586565), (10, 2151939), (15, 1434626), (30, 717313), (71, 303090), (142, 151545), (213, 101030), (355, 60618), (426, 50515), (710, 30309), (1065, 20206), (2130, 10103)]