18991214

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{6301}}^1$

素因数の和:6451

約数の個数: 16

約数和(自身を含む): 31308336

約数和(自身を除く): 12317122

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 6301, 12602, 69311, 138622, 863237, 1726474, 9495607, 18991214]

約数ペア:

[(1, 18991214), (2, 9495607), (11, 1726474), (22, 863237), (137, 138622), (274, 69311), (1507, 12602), (3014, 6301)]