21211828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25373}}^1$

素因数の和:25407

約数の個数: 24

約数和(自身を含む): 42628320

約数和(自身を除く): 21416492

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25373, 50746, 101492, 279103, 482087, 558206, 964174, 1116412, 1928348, 5302957, 10605914, 21211828]

約数ペア:

[(1, 21211828), (2, 10605914), (4, 5302957), (11, 1928348), (19, 1116412), (22, 964174), (38, 558206), (44, 482087), (76, 279103), (209, 101492), (418, 50746), (836, 25373)]