20574081

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 14020479

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 179, 243, 297, 387, 473, 537, 891, 1161, 1419, 1611, 1969, 2673, 3483, 4257, 4833, 5907, 7697, 10449, 12771, 14499, 17721, 23091, 38313, 43497, 53163, 69273, 84667, 114939, 159489, 207819, 254001, 478467, 623457, 762003, 1870371, 2286009, 6858027, 20574081]

約数ペア:

[(1, 20574081), (3, 6858027), (9, 2286009), (11, 1870371), (27, 762003), (33, 623457), (43, 478467), (81, 254001), (99, 207819), (129, 159489), (179, 114939), (243, 84667), (297, 69273), (387, 53163), (473, 43497), (537, 38313), (891, 23091), (1161, 17721), (1419, 14499), (1611, 12771), (1969, 10449), (2673, 7697), (3483, 5907), (4257, 4833)]