28881921

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1\times {\mathrm{619}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 39203840

約数和(自身を除く): 10321919

約数列:

[1, 3, 103, 151, 309, 453, 619, 1857, 15553, 46659, 63757, 93469, 191271, 280407, 9627307, 28881921]

約数ペア:

[(1, 28881921), (3, 9627307), (103, 280407), (151, 191271), (309, 93469), (453, 63757), (619, 46659), (1857, 15553)]