16909221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42379}}^1$

素因数の和:42408

約数の個数: 16

約数和(自身を含む): 27123200

約数和(自身を除く): 10213979

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 42379, 127137, 296653, 805201, 889959, 2415603, 5636407, 16909221]

約数ペア:

[(1, 16909221), (3, 5636407), (7, 2415603), (19, 889959), (21, 805201), (57, 296653), (133, 127137), (399, 42379)]