261373959

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 498301440

約数和(自身を除く): 236927481

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 61, 63, 77, 81, 99, 183, 189, 229, 231, 243, 297, 427, 549, 567, 671, 687, 693, 891, 1281, 1603, 1647, 1701, 2013, 2061, 2079, 2519, 2673, 3843, 4697, 4809, 4941, 6039, 6183, 6237, 7557, 11529, 13969, 14091, 14427, 14823, 17633, 18117, 18549, 18711, 22671, 34587, 41907, 42273, 43281, 52899, 54351, 55647, 68013, 97783, 103761, 125721, 126819, 129843, 153659, 158697, 163053, 204039, 293349, 377163, 380457, 389529, 460977, 476091, 612117, 880047, 1075613, 1131489, 1141371, 1382931, 1428273, 2640141, 3226839, 3394467, 4148793, 4284819, 7920423, 9680517, 12446379, 23761269, 29041551, 37339137, 87124653, 261373959]

約数ペア:

[(1, 261373959), (3, 87124653), (7, 37339137), (9, 29041551), (11, 23761269), (21, 12446379), (27, 9680517), (33, 7920423), (61, 4284819), (63, 4148793), (77, 3394467), (81, 3226839), (99, 2640141), (183, 1428273), (189, 1382931), (229, 1141371), (231, 1131489), (243, 1075613), (297, 880047), (427, 612117), (549, 476091), (567, 460977), (671, 389529), (687, 380457), (693, 377163), (891, 293349), (1281, 204039), (1603, 163053), (1647, 158697), (1701, 153659), (2013, 129843), (2061, 126819), (2079, 125721), (2519, 103761), (2673, 97783), (3843, 68013), (4697, 55647), (4809, 54351), (4941, 52899), (6039, 43281), (6183, 42273), (6237, 41907), (7557, 34587), (11529, 22671), (13969, 18711), (14091, 18549), (14427, 18117), (14823, 17633)]