221444685

素因数分解:

$3^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 498769920

約数和(自身を除く): 277325235

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 81, 99, 105, 135, 165, 189, 231, 243, 263, 297, 315, 385, 405, 495, 567, 693, 729, 789, 891, 945, 1155, 1215, 1315, 1485, 1701, 1841, 2079, 2187, 2367, 2673, 2835, 2893, 3465, 3645, 3945, 4455, 5103, 5523, 6237, 7101, 8019, 8505, 8679, 9205, 10395, 10935, 11835, 13365, 14465, 15309, 16569, 18711, 20251, 21303, 24057, 25515, 26037, 27615, 31185, 35505, 40095, 43395, 49707, 56133, 60753, 63909, 76545, 78111, 82845, 93555, 101255, 106515, 120285, 130185, 149121, 168399, 182259, 191727, 234333, 248535, 280665, 303765, 319545, 390555, 447363, 546777, 575181, 702999, 745605, 841995, 911295, 958635, 1171665, 1342089, 1640331, 2108997, 2236815, 2733885, 2875905, 3514995, 4026267, 4920993, 6326991, 6710445, 8201655, 10544985, 14762979, 20131335, 24604965, 31634955, 44288937, 73814895, 221444685]

約数ペア:

[(1, 221444685), (3, 73814895), (5, 44288937), (7, 31634955), (9, 24604965), (11, 20131335), (15, 14762979), (21, 10544985), (27, 8201655), (33, 6710445), (35, 6326991), (45, 4920993), (55, 4026267), (63, 3514995), (77, 2875905), (81, 2733885), (99, 2236815), (105, 2108997), (135, 1640331), (165, 1342089), (189, 1171665), (231, 958635), (243, 911295), (263, 841995), (297, 745605), (315, 702999), (385, 575181), (405, 546777), (495, 447363), (567, 390555), (693, 319545), (729, 303765), (789, 280665), (891, 248535), (945, 234333), (1155, 191727), (1215, 182259), (1315, 168399), (1485, 149121), (1701, 130185), (1841, 120285), (2079, 106515), (2187, 101255), (2367, 93555), (2673, 82845), (2835, 78111), (2893, 76545), (3465, 63909), (3645, 60753), (3945, 56133), (4455, 49707), (5103, 43395), (5523, 40095), (6237, 35505), (7101, 31185), (8019, 27615), (8505, 26037), (8679, 25515), (9205, 24057), (10395, 21303), (10935, 20251), (11835, 18711), (13365, 16569), (14465, 15309)]