21185438

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13651042

約数列:

[1, 2, 23, 41, 46, 47, 82, 94, 239, 478, 943, 1081, 1886, 1927, 2162, 3854, 5497, 9799, 10994, 11233, 19598, 22466, 44321, 88642, 225377, 258359, 450754, 460553, 516718, 921106, 10592719, 21185438]

約数ペア:

[(1, 21185438), (2, 10592719), (23, 921106), (41, 516718), (46, 460553), (47, 450754), (82, 258359), (94, 225377), (239, 88642), (478, 44321), (943, 22466), (1081, 19598), (1886, 11233), (1927, 10994), (2162, 9799), (3854, 5497)]