21199830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{706661}}^1$

素因数の和:706671

約数の個数: 16

約数和(自身を含む): 50879664

約数和(自身を除く): 29679834

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 706661, 1413322, 2119983, 3533305, 4239966, 7066610, 10599915, 21199830]

約数ペア:

[(1, 21199830), (2, 10599915), (3, 7066610), (5, 4239966), (6, 3533305), (10, 2119983), (15, 1413322), (30, 706661)]