21409029

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4637}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 33764640

約数和(自身を除く): 12355611

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4617, 4637, 13911, 41733, 88103, 125199, 264309, 375597, 792927, 1126791, 2378781, 7136343, 21409029]

約数ペア:

[(1, 21409029), (3, 7136343), (9, 2378781), (19, 1126791), (27, 792927), (57, 375597), (81, 264309), (171, 125199), (243, 88103), (513, 41733), (1539, 13911), (4617, 4637)]