21000545430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2609}}^1\times {\mathrm{3779}}^1$

素因数の和:6469

約数の個数: 64

約数和(自身を含む): 51144307200

約数和(自身を除く): 30143761770

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 2609, 3779, 5218, 7558, 7827, 11337, 13045, 15654, 18895, 22674, 26090, 37790, 39135, 56685, 78270, 113370, 185239, 268309, 370478, 536618, 555717, 804927, 926195, 1111434, 1341545, 1609854, 1852390, 2683090, 2778585, 4024635, 5557170, 8049270, 9859411, 19718822, 29578233, 49297055, 59156466, 98594110, 147891165, 295782330, 700018181, 1400036362, 2100054543, 3500090905, 4200109086, 7000181810, 10500272715, 21000545430]

約数ペア:

[(1, 21000545430), (2, 10500272715), (3, 7000181810), (5, 4200109086), (6, 3500090905), (10, 2100054543), (15, 1400036362), (30, 700018181), (71, 295782330), (142, 147891165), (213, 98594110), (355, 59156466), (426, 49297055), (710, 29578233), (1065, 19718822), (2130, 9859411), (2609, 8049270), (3779, 5557170), (5218, 4024635), (7558, 2778585), (7827, 2683090), (11337, 1852390), (13045, 1609854), (15654, 1341545), (18895, 1111434), (22674, 926195), (26090, 804927), (37790, 555717), (39135, 536618), (56685, 370478), (78270, 268309), (113370, 185239)]