21072285

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12007}}^1$

素因数の和:12034

約数の個数: 32

約数和(自身を含む): 40346880

約数和(自身を除く): 19274595

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 12007, 36021, 60035, 108063, 156091, 180105, 324189, 468273, 540315, 780455, 1404819, 1620945, 2341365, 4214457, 7024095, 21072285]

約数ペア:

[(1, 21072285), (3, 7024095), (5, 4214457), (9, 2341365), (13, 1620945), (15, 1404819), (27, 780455), (39, 540315), (45, 468273), (65, 324189), (117, 180105), (135, 156091), (195, 108063), (351, 60035), (585, 36021), (1755, 12007)]