21750904

素因数分解:

$2^3\times 7^2\times {\mathrm{55487}}^1$

素因数の和:55507

約数の個数: 24

約数和(自身を含む): 47442240

約数和(自身を除く): 25691336

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55487, 110974, 221948, 388409, 443896, 776818, 1553636, 2718863, 3107272, 5437726, 10875452, 21750904]

約数ペア:

[(1, 21750904), (2, 10875452), (4, 5437726), (7, 3107272), (8, 2718863), (14, 1553636), (28, 776818), (49, 443896), (56, 388409), (98, 221948), (196, 110974), (392, 55487)]