21421288

素因数分解:

$2^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2137}}^1$

素因数の和:2329

約数の個数: 32

約数和(自身を含む): 46180800

約数和(自身を除く): 24759512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 179, 358, 716, 1253, 1432, 2137, 2506, 4274, 5012, 8548, 10024, 14959, 17096, 29918, 59836, 119672, 382523, 765046, 1530092, 2677661, 3060184, 5355322, 10710644, 21421288]

約数ペア:

[(1, 21421288), (2, 10710644), (4, 5355322), (7, 3060184), (8, 2677661), (14, 1530092), (28, 765046), (56, 382523), (179, 119672), (358, 59836), (716, 29918), (1253, 17096), (1432, 14959), (2137, 10024), (2506, 8548), (4274, 5012)]