21435130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{7417}}^1$

素因数の和:7458

約数の個数: 24

約数和(自身を含む): 40991868

約数和(自身を除く): 19556738

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 7417, 14834, 37085, 74170, 126089, 252178, 630445, 1260890, 2143513, 4287026, 10717565, 21435130]

約数ペア:

[(1, 21435130), (2, 10717565), (5, 4287026), (10, 2143513), (17, 1260890), (34, 630445), (85, 252178), (170, 126089), (289, 74170), (578, 37085), (1445, 14834), (2890, 7417)]