216910869

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{1319}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 340623360

約数和(自身を除く): 123712491

約数列:

[1, 3, 7, 21, 41, 123, 191, 287, 573, 861, 1319, 1337, 3957, 4011, 7831, 9233, 23493, 27699, 54079, 54817, 162237, 164451, 251929, 378553, 755787, 1135659, 1763503, 5290509, 10329089, 30987267, 72303623, 216910869]

約数ペア:

[(1, 216910869), (3, 72303623), (7, 30987267), (21, 10329089), (41, 5290509), (123, 1763503), (191, 1135659), (287, 755787), (573, 378553), (861, 251929), (1319, 164451), (1337, 162237), (3957, 54817), (4011, 54079), (7831, 27699), (9233, 23493)]