21190378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{5381}}^1$

素因数の和:5573

約数の個数: 16

約数和(自身を含む): 34875360

約数和(自身を除く): 13684982

約数列:

[1, 2, 11, 22, 179, 358, 1969, 3938, 5381, 10762, 59191, 118382, 963199, 1926398, 10595189, 21190378]

約数ペア:

[(1, 21190378), (2, 10595189), (11, 1926398), (22, 963199), (179, 118382), (358, 59191), (1969, 10762), (3938, 5381)]