261666009

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 448820736

約数和(自身を除く): 187154727

約数列:

[1, 3, 9, 11, 23, 31, 33, 69, 93, 99, 121, 207, 253, 279, 337, 341, 363, 713, 759, 1011, 1023, 1089, 2139, 2277, 2783, 3033, 3069, 3707, 3751, 6417, 7751, 7843, 8349, 10447, 11121, 11253, 23253, 23529, 25047, 31341, 33363, 33759, 40777, 69759, 70587, 85261, 86273, 94023, 114917, 122331, 240281, 255783, 258819, 344751, 366993, 720843, 767349, 776457, 937871, 1034253, 1264087, 2162529, 2643091, 2813613, 3792261, 7929273, 8440839, 11376783, 23787819, 29074001, 87222003, 261666009]

約数ペア:

[(1, 261666009), (3, 87222003), (9, 29074001), (11, 23787819), (23, 11376783), (31, 8440839), (33, 7929273), (69, 3792261), (93, 2813613), (99, 2643091), (121, 2162529), (207, 1264087), (253, 1034253), (279, 937871), (337, 776457), (341, 767349), (363, 720843), (713, 366993), (759, 344751), (1011, 258819), (1023, 255783), (1089, 240281), (2139, 122331), (2277, 114917), (2783, 94023), (3033, 86273), (3069, 85261), (3707, 70587), (3751, 69759), (6417, 40777), (7751, 33759), (7843, 33363), (8349, 31341), (10447, 25047), (11121, 23529), (11253, 23253)]