21246169

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 24969600

約数和(自身を除く): 3723431

約数列:

[1, 7, 67, 89, 469, 509, 623, 3563, 5963, 34103, 41741, 45301, 238721, 317107, 3035167, 21246169]

約数ペア:

[(1, 21246169), (7, 3035167), (67, 317107), (89, 238721), (469, 45301), (509, 41741), (623, 34103), (3563, 5963)]