398450913

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{23747}}^1$

素因数の和:23821

約数の個数: 32

約数和(自身を含む): 656584704

約数和(自身を除く): 258133791

約数列:

[1, 3, 7, 17, 21, 47, 51, 119, 141, 329, 357, 799, 987, 2397, 5593, 16779, 23747, 71241, 166229, 403699, 498687, 1116109, 1211097, 2825893, 3348327, 7812763, 8477679, 18973853, 23438289, 56921559, 132816971, 398450913]

約数ペア:

[(1, 398450913), (3, 132816971), (7, 56921559), (17, 23438289), (21, 18973853), (47, 8477679), (51, 7812763), (119, 3348327), (141, 2825893), (329, 1211097), (357, 1116109), (799, 498687), (987, 403699), (2397, 166229), (5593, 71241), (16779, 23747)]