2181015

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2851}}^1$

素因数の和:2879

約数の個数: 24

約数和(自身を含む): 4004208

約数和(自身を除く): 1823193

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 2851, 8553, 14255, 25659, 42765, 48467, 128295, 145401, 242335, 436203, 727005, 2181015]

約数ペア:

[(1, 2181015), (3, 727005), (5, 436203), (9, 242335), (15, 145401), (17, 128295), (45, 48467), (51, 42765), (85, 25659), (153, 14255), (255, 8553), (765, 2851)]