21003316

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{1543}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 38130624

約数和(自身を除く): 17127308

約数列:

[1, 2, 4, 41, 82, 83, 164, 166, 332, 1543, 3086, 3403, 6172, 6806, 13612, 63263, 126526, 128069, 253052, 256138, 512276, 5250829, 10501658, 21003316]

約数ペア:

[(1, 21003316), (2, 10501658), (4, 5250829), (41, 512276), (82, 256138), (83, 253052), (164, 128069), (166, 126526), (332, 63263), (1543, 13612), (3086, 6806), (3403, 6172)]