21972938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11903}}^1$

素因数の和:11989

約数の個数: 16

約数和(自身を含む): 35997696

約数和(自身を除く): 14024758

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11903, 23806, 154739, 309478, 845113, 1690226, 10986469, 21972938]

約数ペア:

[(1, 21972938), (2, 10986469), (13, 1690226), (26, 845113), (71, 309478), (142, 154739), (923, 23806), (1846, 11903)]