21173218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20477}}^1$

素因数の和:20537

約数の個数: 16

約数和(自身を含む): 35385984

約数和(自身を除く): 14212766

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 20477, 40954, 225247, 450494, 962419, 1924838, 10586609, 21173218]

約数ペア:

[(1, 21173218), (2, 10586609), (11, 1924838), (22, 962419), (47, 450494), (94, 225247), (517, 40954), (1034, 20477)]