21485436

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1867}}^1$

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 57743616

約数和(自身を除く): 36258180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 137, 274, 411, 548, 822, 959, 1644, 1867, 1918, 2877, 3734, 3836, 5601, 5754, 7468, 11202, 11508, 13069, 22404, 26138, 39207, 52276, 78414, 156828, 255779, 511558, 767337, 1023116, 1534674, 1790453, 3069348, 3580906, 5371359, 7161812, 10742718, 21485436]

約数ペア:

[(1, 21485436), (2, 10742718), (3, 7161812), (4, 5371359), (6, 3580906), (7, 3069348), (12, 1790453), (14, 1534674), (21, 1023116), (28, 767337), (42, 511558), (84, 255779), (137, 156828), (274, 78414), (411, 52276), (548, 39207), (822, 26138), (959, 22404), (1644, 13069), (1867, 11508), (1918, 11202), (2877, 7468), (3734, 5754), (3836, 5601)]