21351308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{577}}^1$

素因数の和:650

約数の個数: 36

約数和(自身を含む): 42288792

約数和(自身を除く): 20937484

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 577, 638, 841, 1154, 1276, 1682, 2308, 3364, 6347, 9251, 12694, 16733, 18502, 25388, 33466, 37004, 66932, 184063, 368126, 485257, 736252, 970514, 1941028, 5337827, 10675654, 21351308]

約数ペア:

[(1, 21351308), (2, 10675654), (4, 5337827), (11, 1941028), (22, 970514), (29, 736252), (44, 485257), (58, 368126), (116, 184063), (319, 66932), (577, 37004), (638, 33466), (841, 25388), (1154, 18502), (1276, 16733), (1682, 12694), (2308, 9251), (3364, 6347)]