21768704

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 47950056

約数和(自身を除く): 26181352

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 61, 64, 68, 82, 122, 128, 136, 164, 244, 256, 272, 328, 488, 512, 544, 656, 697, 976, 1037, 1088, 1312, 1394, 1952, 2074, 2176, 2501, 2624, 2788, 3904, 4148, 4352, 5002, 5248, 5576, 7808, 8296, 8704, 10004, 10496, 11152, 15616, 16592, 20008, 20992, 22304, 31232, 33184, 40016, 42517, 44608, 66368, 80032, 85034, 89216, 132736, 160064, 170068, 178432, 265472, 320128, 340136, 356864, 530944, 640256, 680272, 1280512, 1360544, 2721088, 5442176, 10884352, 21768704]

約数ペア:

[(1, 21768704), (2, 10884352), (4, 5442176), (8, 2721088), (16, 1360544), (17, 1280512), (32, 680272), (34, 640256), (41, 530944), (61, 356864), (64, 340136), (68, 320128), (82, 265472), (122, 178432), (128, 170068), (136, 160064), (164, 132736), (244, 89216), (256, 85034), (272, 80032), (328, 66368), (488, 44608), (512, 42517), (544, 40016), (656, 33184), (697, 31232), (976, 22304), (1037, 20992), (1088, 20008), (1312, 16592), (1394, 15616), (1952, 11152), (2074, 10496), (2176, 10004), (2501, 8704), (2624, 8296), (2788, 7808), (3904, 5576), (4148, 5248), (4352, 5002)]