21963865

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 33281280

約数和(自身を除く): 11317415

約数列:

[1, 5, 7, 11, 35, 55, 77, 89, 385, 445, 623, 641, 979, 3115, 3205, 4487, 4895, 6853, 7051, 22435, 34265, 35255, 49357, 57049, 246785, 285245, 399343, 627539, 1996715, 3137695, 4392773, 21963865]

約数ペア:

[(1, 21963865), (5, 4392773), (7, 3137695), (11, 1996715), (35, 627539), (55, 399343), (77, 285245), (89, 246785), (385, 57049), (445, 49357), (623, 35255), (641, 34265), (979, 22435), (3115, 7051), (3205, 6853), (4487, 4895)]