81475443

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 144752640

約数和(自身を除く): 63277197

約数列:

[1, 3, 7, 9, 21, 27, 37, 61, 63, 111, 183, 189, 191, 259, 333, 427, 549, 573, 777, 999, 1281, 1337, 1647, 1719, 2257, 2331, 3843, 4011, 5157, 6771, 6993, 7067, 11529, 11651, 12033, 15799, 20313, 21201, 34953, 36099, 47397, 49469, 60939, 63603, 81557, 104859, 142191, 148407, 190809, 244671, 314577, 426573, 431087, 445221, 734013, 1293261, 1335663, 2202039, 3017609, 3879783, 9052827, 11639349, 27158481, 81475443]

約数ペア:

[(1, 81475443), (3, 27158481), (7, 11639349), (9, 9052827), (21, 3879783), (27, 3017609), (37, 2202039), (61, 1335663), (63, 1293261), (111, 734013), (183, 445221), (189, 431087), (191, 426573), (259, 314577), (333, 244671), (427, 190809), (549, 148407), (573, 142191), (777, 104859), (999, 81557), (1281, 63603), (1337, 60939), (1647, 49469), (1719, 47397), (2257, 36099), (2331, 34953), (3843, 21201), (4011, 20313), (5157, 15799), (6771, 12033), (6993, 11651), (7067, 11529)]