20120841

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3659}}^1$

素因数の和:3725

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 11852919

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3659, 5499, 10977, 32931, 47567, 142701, 171973, 428103, 515919, 1547757, 2235649, 6706947, 20120841]

約数ペア:

[(1, 20120841), (3, 6706947), (9, 2235649), (13, 1547757), (39, 515919), (47, 428103), (117, 171973), (141, 142701), (423, 47567), (611, 32931), (1833, 10977), (3659, 5499)]