21751694

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:728

約数の個数: 24

約数和(自身を含む): 35222688

約数和(自身を除く): 13470994

約数列:

[1, 2, 19, 38, 47, 94, 361, 641, 722, 893, 1282, 1786, 12179, 16967, 24358, 30127, 33934, 60254, 231401, 462802, 572413, 1144826, 10875847, 21751694]

約数ペア:

[(1, 21751694), (2, 10875847), (19, 1144826), (38, 572413), (47, 462802), (94, 231401), (361, 60254), (641, 33934), (722, 30127), (893, 24358), (1282, 16967), (1786, 12179)]