221890417

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1\times {\mathrm{3853}}^1$

素因数の和:4312

約数の個数: 16

約数和(自身を含む): 267621760

約数和(自身を除く): 45731343

約数列:

[1, 7, 19, 133, 433, 3031, 3853, 8227, 26971, 57589, 73207, 512449, 1668349, 11678443, 31698631, 221890417]

約数ペア:

[(1, 221890417), (7, 31698631), (19, 11678443), (133, 1668349), (433, 512449), (3031, 73207), (3853, 57589), (8227, 26971)]