21377445

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1483}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 35366688

約数和(自身を除く): 13989243

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 961, 1483, 2883, 4449, 4805, 7415, 14415, 22245, 45973, 137919, 229865, 689595, 1425163, 4275489, 7125815, 21377445]

約数ペア:

[(1, 21377445), (3, 7125815), (5, 4275489), (15, 1425163), (31, 689595), (93, 229865), (155, 137919), (465, 45973), (961, 22245), (1483, 14415), (2883, 7415), (4449, 4805)]