21492680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{48847}}^1$

素因数の和:48869

約数の個数: 32

約数和(自身を含む): 52755840

約数和(自身を除く): 31263160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 48847, 97694, 195388, 244235, 390776, 488470, 537317, 976940, 1074634, 1953880, 2149268, 2686585, 4298536, 5373170, 10746340, 21492680]

約数ペア:

[(1, 21492680), (2, 10746340), (4, 5373170), (5, 4298536), (8, 2686585), (10, 2149268), (11, 1953880), (20, 1074634), (22, 976940), (40, 537317), (44, 488470), (55, 390776), (88, 244235), (110, 195388), (220, 97694), (440, 48847)]