21054210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1667}}^1$

素因数の和:2098

約数の個数: 32

約数和(自身を含む): 50680512

約数和(自身を除く): 29626302

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 421, 842, 1263, 1667, 2105, 2526, 3334, 4210, 5001, 6315, 8335, 10002, 12630, 16670, 25005, 50010, 701807, 1403614, 2105421, 3509035, 4210842, 7018070, 10527105, 21054210]

約数ペア:

[(1, 21054210), (2, 10527105), (3, 7018070), (5, 4210842), (6, 3509035), (10, 2105421), (15, 1403614), (30, 701807), (421, 50010), (842, 25005), (1263, 16670), (1667, 12630), (2105, 10002), (2526, 8335), (3334, 6315), (4210, 5001)]