21970532

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 39231360

約数和(自身を除く): 17260828

約数列:

[1, 2, 4, 79, 158, 251, 277, 316, 502, 554, 1004, 1108, 19829, 21883, 39658, 43766, 69527, 79316, 87532, 139054, 278108, 5492633, 10985266, 21970532]

約数ペア:

[(1, 21970532), (2, 10985266), (4, 5492633), (79, 278108), (158, 139054), (251, 87532), (277, 79316), (316, 69527), (502, 43766), (554, 39658), (1004, 21883), (1108, 19829)]