21131676

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{9949}}^1$

素因数の和:10018

約数の個数: 36

約数和(自身を含む): 54327000

約数和(自身を除く): 33195324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 118, 177, 236, 354, 531, 708, 1062, 2124, 9949, 19898, 29847, 39796, 59694, 89541, 119388, 179082, 358164, 586991, 1173982, 1760973, 2347964, 3521946, 5282919, 7043892, 10565838, 21131676]

約数ペア:

[(1, 21131676), (2, 10565838), (3, 7043892), (4, 5282919), (6, 3521946), (9, 2347964), (12, 1760973), (18, 1173982), (36, 586991), (59, 358164), (118, 179082), (177, 119388), (236, 89541), (354, 59694), (531, 39796), (708, 29847), (1062, 19898), (2124, 9949)]