21641092

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{733}}^1$

素因数の和:820

約数の個数: 36

約数和(自身を含む): 42367948

約数和(自身を除く): 20726856

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 733, 1342, 1466, 2684, 2932, 7381, 8063, 14762, 16126, 29524, 32252, 44713, 88693, 89426, 177386, 178852, 354772, 491843, 983686, 1967372, 5410273, 10820546, 21641092]

約数ペア:

[(1, 21641092), (2, 10820546), (4, 5410273), (11, 1967372), (22, 983686), (44, 491843), (61, 354772), (121, 178852), (122, 177386), (242, 89426), (244, 88693), (484, 44713), (671, 32252), (733, 29524), (1342, 16126), (1466, 14762), (2684, 8063), (2932, 7381)]