20165852

素因数分解:

$2^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{751}}^1$

素因数の和:906

約数の個数: 36

約数和(自身を含む): 41406624

約数和(自身を除く): 21240772

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 137, 196, 274, 548, 751, 959, 1502, 1918, 3004, 3836, 5257, 6713, 10514, 13426, 21028, 26852, 36799, 73598, 102887, 147196, 205774, 411548, 720209, 1440418, 2880836, 5041463, 10082926, 20165852]

約数ペア:

[(1, 20165852), (2, 10082926), (4, 5041463), (7, 2880836), (14, 1440418), (28, 720209), (49, 411548), (98, 205774), (137, 147196), (196, 102887), (274, 73598), (548, 36799), (751, 26852), (959, 21028), (1502, 13426), (1918, 10514), (3004, 6713), (3836, 5257)]