21618666

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 49570560

約数和(自身を除く): 27951894

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 79, 138, 158, 207, 237, 414, 474, 661, 711, 1322, 1422, 1817, 1983, 3634, 3966, 5451, 5949, 10902, 11898, 15203, 16353, 30406, 32706, 45609, 52219, 91218, 104438, 136827, 156657, 273654, 313314, 469971, 939942, 1201037, 2402074, 3603111, 7206222, 10809333, 21618666]

約数ペア:

[(1, 21618666), (2, 10809333), (3, 7206222), (6, 3603111), (9, 2402074), (18, 1201037), (23, 939942), (46, 469971), (69, 313314), (79, 273654), (138, 156657), (158, 136827), (207, 104438), (237, 91218), (414, 52219), (474, 45609), (661, 32706), (711, 30406), (1322, 16353), (1422, 15203), (1817, 11898), (1983, 10902), (3634, 5949), (3966, 5451)]