21933747

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 36241920

約数和(自身を除く): 14308173

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 103, 239, 297, 309, 717, 891, 927, 1133, 2151, 2629, 2781, 3399, 6453, 7887, 8343, 10197, 19359, 23661, 24617, 30591, 70983, 73851, 91773, 212949, 221553, 270787, 664659, 812361, 1993977, 2437083, 7311249, 21933747]

約数ペア:

[(1, 21933747), (3, 7311249), (9, 2437083), (11, 1993977), (27, 812361), (33, 664659), (81, 270787), (99, 221553), (103, 212949), (239, 91773), (297, 73851), (309, 70983), (717, 30591), (891, 24617), (927, 23661), (1133, 19359), (2151, 10197), (2629, 8343), (2781, 7887), (3399, 6453)]