21000663468

素因数分解:

$2^2\times 3^2\times {\mathrm{347}}^1\times {\mathrm{1681129}}^1$

素因数の和:1681486

約数の個数: 36

約数和(自身を含む): 53238024840

約数和(自身を除く): 32237361372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 347, 694, 1041, 1388, 2082, 3123, 4164, 6246, 12492, 1681129, 3362258, 5043387, 6724516, 10086774, 15130161, 20173548, 30260322, 60520644, 583351763, 1166703526, 1750055289, 2333407052, 3500110578, 5250165867, 7000221156, 10500331734, 21000663468]

約数ペア:

[(1, 21000663468), (2, 10500331734), (3, 7000221156), (4, 5250165867), (6, 3500110578), (9, 2333407052), (12, 1750055289), (18, 1166703526), (36, 583351763), (347, 60520644), (694, 30260322), (1041, 20173548), (1388, 15130161), (2082, 10086774), (3123, 6724516), (4164, 5043387), (6246, 3362258), (12492, 1681129)]