21000434670

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3286453}}^1$

素因数の和:3286537

約数の個数: 48

約数和(自身を含む): 55370176992

約数和(自身を除く): 34369742322

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 3286453, 6572906, 9859359, 16432265, 19718718, 29578077, 32864530, 49296795, 59156154, 98593590, 147890385, 233338163, 295780770, 466676326, 700014489, 1166690815, 1400028978, 2100043467, 2333381630, 3500072445, 4200086934, 7000144890, 10500217335, 21000434670]

約数ペア:

[(1, 21000434670), (2, 10500217335), (3, 7000144890), (5, 4200086934), (6, 3500072445), (9, 2333381630), (10, 2100043467), (15, 1400028978), (18, 1166690815), (30, 700014489), (45, 466676326), (71, 295780770), (90, 233338163), (142, 147890385), (213, 98593590), (355, 59156154), (426, 49296795), (639, 32864530), (710, 29578077), (1065, 19718718), (1278, 16432265), (2130, 9859359), (3195, 6572906), (6390, 3286453)]