21278190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709273}}^1$

素因数の和:709283

約数の個数: 16

約数和(自身を含む): 51067728

約数和(自身を除く): 29789538

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709273, 1418546, 2127819, 3546365, 4255638, 7092730, 10639095, 21278190]

約数ペア:

[(1, 21278190), (2, 10639095), (3, 7092730), (5, 4255638), (6, 3546365), (10, 2127819), (15, 1418546), (30, 709273)]