219869909

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{359}}^1\times {\mathrm{431}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 265939200

約数和(自身を除く): 46069291

約数列:

[1, 7, 29, 49, 203, 359, 431, 1421, 2513, 3017, 10411, 12499, 17591, 21119, 72877, 87493, 154729, 510139, 612451, 1083103, 4487141, 7581721, 31409987, 219869909]

約数ペア:

[(1, 219869909), (7, 31409987), (29, 7581721), (49, 4487141), (203, 1083103), (359, 612451), (431, 510139), (1421, 154729), (2513, 87493), (3017, 72877), (10411, 21119), (12499, 17591)]