21440684

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 38464608

約数和(自身を除く): 17023924

約数列:

[1, 2, 4, 73, 101, 146, 202, 292, 404, 727, 1454, 2908, 7373, 14746, 29492, 53071, 73427, 106142, 146854, 212284, 293708, 5360171, 10720342, 21440684]

約数ペア:

[(1, 21440684), (2, 10720342), (4, 5360171), (73, 293708), (101, 212284), (146, 146854), (202, 106142), (292, 73427), (404, 53071), (727, 29492), (1454, 14746), (2908, 7373)]