16908801

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 27971328

約数和(自身を除く): 11062527

約数列:

[1, 3, 7, 13, 21, 39, 91, 241, 257, 273, 723, 771, 1687, 1799, 3133, 3341, 5061, 5397, 9399, 10023, 21931, 23387, 61937, 65793, 70161, 185811, 433559, 805181, 1300677, 2415543, 5636267, 16908801]

約数ペア:

[(1, 16908801), (3, 5636267), (7, 2415543), (13, 1300677), (21, 805181), (39, 433559), (91, 185811), (241, 70161), (257, 65793), (273, 61937), (723, 23387), (771, 21931), (1687, 10023), (1799, 9399), (3133, 5397), (3341, 5061)]