217470921

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{16823}}^1$

素因数の和:16996

約数の個数: 16

約数和(自身を含む): 301486080

約数和(自身を除く): 84015159

約数列:

[1, 3, 31, 93, 139, 417, 4309, 12927, 16823, 50469, 521513, 1564539, 2338397, 7015191, 72490307, 217470921]

約数ペア:

[(1, 217470921), (3, 72490307), (31, 7015191), (93, 2338397), (139, 1564539), (417, 521513), (4309, 50469), (12927, 16823)]