21396230

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16333}}^1$

素因数の和:16471

約数の個数: 16

約数和(自身を含む): 38809584

約数和(自身を除く): 17413354

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16333, 32666, 81665, 163330, 2139623, 4279246, 10698115, 21396230]

約数ペア:

[(1, 21396230), (2, 10698115), (5, 4279246), (10, 2139623), (131, 163330), (262, 81665), (655, 32666), (1310, 16333)]