21398872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1009}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 43995600

約数和(自身を除く): 22596728

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 241, 482, 964, 1009, 1928, 2018, 2651, 4036, 5302, 8072, 10604, 11099, 21208, 22198, 44396, 88792, 243169, 486338, 972676, 1945352, 2674859, 5349718, 10699436, 21398872]

約数ペア:

[(1, 21398872), (2, 10699436), (4, 5349718), (8, 2674859), (11, 1945352), (22, 972676), (44, 486338), (88, 243169), (241, 88792), (482, 44396), (964, 22198), (1009, 21208), (1928, 11099), (2018, 10604), (2651, 8072), (4036, 5302)]