21686444

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4049}}^1$

素因数の和:4169

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 19591156

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 4049, 5356, 8098, 16196, 52637, 105274, 210548, 417047, 834094, 1668188, 5421611, 10843222, 21686444]

約数ペア:

[(1, 21686444), (2, 10843222), (4, 5421611), (13, 1668188), (26, 834094), (52, 417047), (103, 210548), (206, 105274), (412, 52637), (1339, 16196), (2678, 8098), (4049, 5356)]