21522447

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 31917600

約数和(自身を除く): 10395153

約数列:

[1, 3, 9, 61, 183, 197, 199, 549, 591, 597, 1773, 1791, 12017, 12139, 36051, 36417, 39203, 108153, 109251, 117609, 352827, 2391383, 7174149, 21522447]

約数ペア:

[(1, 21522447), (3, 7174149), (9, 2391383), (61, 352827), (183, 117609), (197, 109251), (199, 108153), (549, 39203), (591, 36417), (597, 36051), (1773, 12139), (1791, 12017)]