21912790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{95273}}^1$

素因数の和:95303

約数の個数: 16

約数和(自身を含む): 41158368

約数和(自身を除く): 19245578

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 95273, 190546, 476365, 952730, 2191279, 4382558, 10956395, 21912790]

約数ペア:

[(1, 21912790), (2, 10956395), (5, 4382558), (10, 2191279), (23, 952730), (46, 476365), (115, 190546), (230, 95273)]