21557688

素因数分解:

$2^3\times 3^1\times {\mathrm{113}}^1\times {\mathrm{7949}}^1$

素因数の和:8071

約数の個数: 32

約数和(自身を含む): 54378000

約数和(自身を除く): 32820312

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 113, 226, 339, 452, 678, 904, 1356, 2712, 7949, 15898, 23847, 31796, 47694, 63592, 95388, 190776, 898237, 1796474, 2694711, 3592948, 5389422, 7185896, 10778844, 21557688]

約数ペア:

[(1, 21557688), (2, 10778844), (3, 7185896), (4, 5389422), (6, 3592948), (8, 2694711), (12, 1796474), (24, 898237), (113, 190776), (226, 95388), (339, 63592), (452, 47694), (678, 31796), (904, 23847), (1356, 15898), (2712, 7949)]