21054338

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{2557}}^1$

素因数の和:2761

約数の個数: 16

約数和(自身を含む): 33151680

約数和(自身を除く): 12097342

約数列:

[1, 2, 23, 46, 179, 358, 2557, 4117, 5114, 8234, 58811, 117622, 457703, 915406, 10527169, 21054338]

約数ペア:

[(1, 21054338), (2, 10527169), (23, 915406), (46, 457703), (179, 117622), (358, 58811), (2557, 8234), (4117, 5114)]