21908390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44711}}^1$

素因数の和:44732

約数の個数: 24

約数和(自身を含む): 45874512

約数和(自身を除く): 23966122

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44711, 89422, 223555, 312977, 447110, 625954, 1564885, 2190839, 3129770, 4381678, 10954195, 21908390]

約数ペア:

[(1, 21908390), (2, 10954195), (5, 4381678), (7, 3129770), (10, 2190839), (14, 1564885), (35, 625954), (49, 447110), (70, 312977), (98, 223555), (245, 89422), (490, 44711)]