21076910

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72679}}^1$

素因数の和:72715

約数の個数: 16

約数和(自身を含む): 39247200

約数和(自身を除く): 18170290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72679, 145358, 363395, 726790, 2107691, 4215382, 10538455, 21076910]

約数ペア:

[(1, 21076910), (2, 10538455), (5, 4215382), (10, 2107691), (29, 726790), (58, 363395), (145, 145358), (290, 72679)]