21000761325

素因数分解:

$3^3\times 5^2\times {\mathrm{383}}^1\times {\mathrm{81233}}^1$

素因数の和:81635

約数の個数: 48

約数和(自身を含む): 38680381440

約数和(自身を除く): 17679620115

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 383, 675, 1149, 1915, 3447, 5745, 9575, 10341, 17235, 28725, 51705, 81233, 86175, 243699, 258525, 406165, 731097, 1218495, 2030825, 2193291, 3655485, 6092475, 10966455, 18277425, 31112239, 54832275, 93336717, 155561195, 280010151, 466683585, 777805975, 840030453, 1400050755, 2333417925, 4200152265, 7000253775, 21000761325]

約数ペア:

[(1, 21000761325), (3, 7000253775), (5, 4200152265), (9, 2333417925), (15, 1400050755), (25, 840030453), (27, 777805975), (45, 466683585), (75, 280010151), (135, 155561195), (225, 93336717), (383, 54832275), (675, 31112239), (1149, 18277425), (1915, 10966455), (3447, 6092475), (5745, 3655485), (9575, 2193291), (10341, 2030825), (17235, 1218495), (28725, 731097), (51705, 406165), (81233, 258525), (86175, 243699)]