208504959

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{1217}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 314302464

約数和(自身を除く): 105797505

約数列:

[1, 3, 13, 23, 39, 69, 191, 299, 573, 897, 1217, 2483, 3651, 4393, 7449, 13179, 15821, 27991, 47463, 57109, 83973, 171327, 232447, 363883, 697341, 1091649, 3021811, 5346281, 9065433, 16038843, 69501653, 208504959]

約数ペア:

[(1, 208504959), (3, 69501653), (13, 16038843), (23, 9065433), (39, 5346281), (69, 3021811), (191, 1091649), (299, 697341), (573, 363883), (897, 232447), (1217, 171327), (2483, 83973), (3651, 57109), (4393, 47463), (7449, 27991), (13179, 15821)]