21818121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 11082999

約数列:

[1, 3, 13, 29, 39, 87, 101, 191, 303, 377, 573, 1131, 1313, 2483, 2929, 3939, 5539, 7449, 8787, 16617, 19291, 38077, 57873, 72007, 114231, 216021, 250783, 559439, 752349, 1678317, 7272707, 21818121]

約数ペア:

[(1, 21818121), (3, 7272707), (13, 1678317), (29, 752349), (39, 559439), (87, 250783), (101, 216021), (191, 114231), (303, 72007), (377, 57873), (573, 38077), (1131, 19291), (1313, 16617), (2483, 8787), (2929, 7449), (3939, 5539)]