21204434

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4817}}^1$

素因数の和:4921

約数の個数: 16

約数和(自身を含む): 33302016

約数和(自身を除く): 12097582

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4817, 9634, 149327, 298654, 342007, 684014, 10602217, 21204434]

約数ペア:

[(1, 21204434), (2, 10602217), (31, 684014), (62, 342007), (71, 298654), (142, 149327), (2201, 9634), (4402, 4817)]