221311728

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4507}}^1$

素因数の和:4563

約数の個数: 120

約数和(自身を含む): 697622016

約数和(自身を除く): 476310288

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 33, 36, 44, 48, 62, 66, 72, 88, 93, 99, 124, 132, 144, 176, 186, 198, 248, 264, 279, 341, 372, 396, 496, 528, 558, 682, 744, 792, 1023, 1116, 1364, 1488, 1584, 2046, 2232, 2728, 3069, 4092, 4464, 4507, 5456, 6138, 8184, 9014, 12276, 13521, 16368, 18028, 24552, 27042, 36056, 40563, 49104, 49577, 54084, 72112, 81126, 99154, 108168, 139717, 148731, 162252, 198308, 216336, 279434, 297462, 324504, 396616, 419151, 446193, 558868, 594924, 649008, 793232, 838302, 892386, 1117736, 1189848, 1257453, 1536887, 1676604, 1784772, 2235472, 2379696, 2514906, 3073774, 3353208, 3569544, 4610661, 5029812, 6147548, 6706416, 7139088, 9221322, 10059624, 12295096, 13831983, 18442644, 20119248, 24590192, 27663966, 36885288, 55327932, 73770576, 110655864, 221311728]

約数ペア:

[(1, 221311728), (2, 110655864), (3, 73770576), (4, 55327932), (6, 36885288), (8, 27663966), (9, 24590192), (11, 20119248), (12, 18442644), (16, 13831983), (18, 12295096), (22, 10059624), (24, 9221322), (31, 7139088), (33, 6706416), (36, 6147548), (44, 5029812), (48, 4610661), (62, 3569544), (66, 3353208), (72, 3073774), (88, 2514906), (93, 2379696), (99, 2235472), (124, 1784772), (132, 1676604), (144, 1536887), (176, 1257453), (186, 1189848), (198, 1117736), (248, 892386), (264, 838302), (279, 793232), (341, 649008), (372, 594924), (396, 558868), (496, 446193), (528, 419151), (558, 396616), (682, 324504), (744, 297462), (792, 279434), (1023, 216336), (1116, 198308), (1364, 162252), (1488, 148731), (1584, 139717), (2046, 108168), (2232, 99154), (2728, 81126), (3069, 72112), (4092, 54084), (4464, 49577), (4507, 49104), (5456, 40563), (6138, 36056), (8184, 27042), (9014, 24552), (12276, 18028), (13521, 16368)]