21532070

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43943}}^1$

素因数の和:43964

約数の個数: 24

約数和(自身を含む): 45086544

約数和(自身を除く): 23554474

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43943, 87886, 219715, 307601, 439430, 615202, 1538005, 2153207, 3076010, 4306414, 10766035, 21532070]

約数ペア:

[(1, 21532070), (2, 10766035), (5, 4306414), (7, 3076010), (10, 2153207), (14, 1538005), (35, 615202), (49, 439430), (70, 307601), (98, 219715), (245, 87886), (490, 43943)]