21456570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16633}}^1$

素因数の和:16686

約数の個数: 32

約数和(自身を含む): 52696512

約数和(自身を除く): 31239942

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16633, 33266, 49899, 83165, 99798, 166330, 249495, 498990, 715219, 1430438, 2145657, 3576095, 4291314, 7152190, 10728285, 21456570]

約数ペア:

[(1, 21456570), (2, 10728285), (3, 7152190), (5, 4291314), (6, 3576095), (10, 2145657), (15, 1430438), (30, 715219), (43, 498990), (86, 249495), (129, 166330), (215, 99798), (258, 83165), (430, 49899), (645, 33266), (1290, 16633)]