21839956

素因数分解:

$2^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 39019680

約数和(自身を除く): 17179724

約数列:

[1, 2, 4, 83, 157, 166, 314, 332, 419, 628, 838, 1676, 13031, 26062, 34777, 52124, 65783, 69554, 131566, 139108, 263132, 5459989, 10919978, 21839956]

約数ペア:

[(1, 21839956), (2, 10919978), (4, 5459989), (83, 263132), (157, 139108), (166, 131566), (314, 69554), (332, 65783), (419, 52124), (628, 34777), (838, 26062), (1676, 13031)]