4004721

素因数分解:

$3^4\times 7^2\times {\mathrm{1009}}^1$

素因数の和:1035

約数の個数: 30

約数和(自身を含む): 6965970

約数和(自身を除く): 2961249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1009, 1323, 3027, 3969, 7063, 9081, 21189, 27243, 49441, 63567, 81729, 148323, 190701, 444969, 572103, 1334907, 4004721]

約数ペア:

[(1, 4004721), (3, 1334907), (7, 572103), (9, 444969), (21, 190701), (27, 148323), (49, 81729), (63, 63567), (81, 49441), (147, 27243), (189, 21189), (441, 9081), (567, 7063), (1009, 3969), (1323, 3027)]