21794362

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1\times {\mathrm{509}}^1$

素因数の和:861

約数の個数: 16

約数和(自身を含む): 33292800

約数和(自身を除く): 11498438

約数列:

[1, 2, 79, 158, 271, 509, 542, 1018, 21409, 40211, 42818, 80422, 137939, 275878, 10897181, 21794362]

約数ペア:

[(1, 21794362), (2, 10897181), (79, 275878), (158, 137939), (271, 80422), (509, 42818), (542, 40211), (1018, 21409)]