21601510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{733}}^1$

素因数の和:1168

約数の個数: 32

約数和(自身を含む): 44603712

約数和(自身を除く): 23002202

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 733, 842, 1466, 2105, 2947, 3665, 4210, 5131, 5894, 7330, 10262, 14735, 25655, 29470, 51310, 308593, 617186, 1542965, 2160151, 3085930, 4320302, 10800755, 21601510]

約数ペア:

[(1, 21601510), (2, 10800755), (5, 4320302), (7, 3085930), (10, 2160151), (14, 1542965), (35, 617186), (70, 308593), (421, 51310), (733, 29470), (842, 25655), (1466, 14735), (2105, 10262), (2947, 7330), (3665, 5894), (4210, 5131)]