21758116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4273}}^1$

素因数の和:4363

約数の個数: 24

約数和(自身を含む): 40688480

約数和(自身を除く): 18930364

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 4273, 5092, 8546, 17092, 81187, 162374, 286291, 324748, 572582, 1145164, 5439529, 10879058, 21758116]

約数ペア:

[(1, 21758116), (2, 10879058), (4, 5439529), (19, 1145164), (38, 572582), (67, 324748), (76, 286291), (134, 162374), (268, 81187), (1273, 17092), (2546, 8546), (4273, 5092)]