81404379

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{22669}}^1$

素因数の和:22704

約数の個数: 32

約数和(自身を含む): 145088000

約数和(自身を除く): 63683621

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 22669, 68007, 158683, 204021, 430711, 476049, 612063, 1292133, 1428147, 3014977, 3876399, 4284441, 9044931, 11629197, 27134793, 81404379]

約数ペア:

[(1, 81404379), (3, 27134793), (7, 11629197), (9, 9044931), (19, 4284441), (21, 3876399), (27, 3014977), (57, 1428147), (63, 1292133), (133, 612063), (171, 476049), (189, 430711), (399, 204021), (513, 158683), (1197, 68007), (3591, 22669)]