21448777

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 5968823

約数列:

[1, 7, 19, 29, 67, 83, 133, 203, 469, 551, 581, 1273, 1577, 1943, 2407, 3857, 5561, 8911, 11039, 13601, 16849, 36917, 38927, 45733, 105659, 161269, 258419, 320131, 739613, 1128883, 3064111, 21448777]

約数ペア:

[(1, 21448777), (7, 3064111), (19, 1128883), (29, 739613), (67, 320131), (83, 258419), (133, 161269), (203, 105659), (469, 45733), (551, 38927), (581, 36917), (1273, 16849), (1577, 13601), (1943, 11039), (2407, 8911), (3857, 5561)]