21537110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3457}}^1$

素因数の和:3560

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 23278570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3457, 6230, 6914, 17285, 24199, 34570, 48398, 120995, 241990, 307673, 615346, 1538365, 2153711, 3076730, 4307422, 10768555, 21537110]

約数ペア:

[(1, 21537110), (2, 10768555), (5, 4307422), (7, 3076730), (10, 2153711), (14, 1538365), (35, 615346), (70, 307673), (89, 241990), (178, 120995), (445, 48398), (623, 34570), (890, 24199), (1246, 17285), (3115, 6914), (3457, 6230)]