21020542

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6397}}^1$

素因数の和:6483

約数の個数: 16

約数和(自身を含む): 33167232

約数和(自身を除く): 12146690

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 6397, 12794, 198307, 339041, 396614, 678082, 10510271, 21020542]

約数ペア:

[(1, 21020542), (2, 10510271), (31, 678082), (53, 396614), (62, 339041), (106, 198307), (1643, 12794), (3286, 6397)]