18733165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^2$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 25378848

約数和(自身を除く): 6645683

約数列:

[1, 5, 11, 43, 55, 89, 215, 445, 473, 979, 2365, 3827, 4895, 7921, 19135, 39605, 42097, 87131, 210485, 340603, 435655, 1703015, 3746633, 18733165]

約数ペア:

[(1, 18733165), (5, 3746633), (11, 1703015), (43, 435655), (55, 340603), (89, 210485), (215, 87131), (445, 42097), (473, 39605), (979, 19135), (2365, 7921), (3827, 4895)]