21680919

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3251}}^1$

素因数の和:3292

約数の個数: 32

約数和(自身を含む): 36422400

約数和(自身を除く): 14741481

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 3251, 6669, 9753, 29259, 42263, 61769, 87777, 126789, 185307, 380367, 555921, 802997, 1141101, 1667763, 2408991, 7226973, 21680919]

約数ペア:

[(1, 21680919), (3, 7226973), (9, 2408991), (13, 1667763), (19, 1141101), (27, 802997), (39, 555921), (57, 380367), (117, 185307), (171, 126789), (247, 87777), (351, 61769), (513, 42263), (741, 29259), (2223, 9753), (3251, 6669)]