20821416

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{593}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 47607384

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 19, 21, 22, 24, 28, 33, 38, 42, 44, 56, 57, 66, 76, 77, 84, 88, 114, 132, 133, 152, 154, 168, 209, 228, 231, 264, 266, 308, 399, 418, 456, 462, 532, 593, 616, 627, 798, 836, 924, 1064, 1186, 1254, 1463, 1596, 1672, 1779, 1848, 2372, 2508, 2926, 3192, 3558, 4151, 4389, 4744, 5016, 5852, 6523, 7116, 8302, 8778, 11267, 11704, 12453, 13046, 14232, 16604, 17556, 19569, 22534, 24906, 26092, 33208, 33801, 35112, 39138, 45068, 45661, 49812, 52184, 67602, 78276, 78869, 90136, 91322, 99624, 123937, 135204, 136983, 156552, 157738, 182644, 236607, 247874, 270408, 273966, 315476, 365288, 371811, 473214, 495748, 547932, 630952, 743622, 867559, 946428, 991496, 1095864, 1487244, 1735118, 1892856, 2602677, 2974488, 3470236, 5205354, 6940472, 10410708, 20821416]

約数ペア:

[(1, 20821416), (2, 10410708), (3, 6940472), (4, 5205354), (6, 3470236), (7, 2974488), (8, 2602677), (11, 1892856), (12, 1735118), (14, 1487244), (19, 1095864), (21, 991496), (22, 946428), (24, 867559), (28, 743622), (33, 630952), (38, 547932), (42, 495748), (44, 473214), (56, 371811), (57, 365288), (66, 315476), (76, 273966), (77, 270408), (84, 247874), (88, 236607), (114, 182644), (132, 157738), (133, 156552), (152, 136983), (154, 135204), (168, 123937), (209, 99624), (228, 91322), (231, 90136), (264, 78869), (266, 78276), (308, 67602), (399, 52184), (418, 49812), (456, 45661), (462, 45068), (532, 39138), (593, 35112), (616, 33801), (627, 33208), (798, 26092), (836, 24906), (924, 22534), (1064, 19569), (1186, 17556), (1254, 16604), (1463, 14232), (1596, 13046), (1672, 12453), (1779, 11704), (1848, 11267), (2372, 8778), (2508, 8302), (2926, 7116), (3192, 6523), (3558, 5852), (4151, 5016), (4389, 4744)]