21653070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42457}}^1$

素因数の和:42484

約数の個数: 32

約数和(自身を含む): 55025568

約数和(自身を除く): 33372498

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 42457, 84914, 127371, 212285, 254742, 424570, 636855, 721769, 1273710, 1443538, 2165307, 3608845, 4330614, 7217690, 10826535, 21653070]

約数ペア:

[(1, 21653070), (2, 10826535), (3, 7217690), (5, 4330614), (6, 3608845), (10, 2165307), (15, 1443538), (17, 1273710), (30, 721769), (34, 636855), (51, 424570), (85, 254742), (102, 212285), (170, 127371), (255, 84914), (510, 42457)]