21737216

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 47216400

約数和(自身を除く): 25479184

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 64, 76, 82, 109, 128, 152, 164, 218, 256, 304, 328, 436, 608, 656, 779, 872, 1216, 1312, 1558, 1744, 2071, 2432, 2624, 3116, 3488, 4142, 4469, 4864, 5248, 6232, 6976, 8284, 8938, 10496, 12464, 13952, 16568, 17876, 24928, 27904, 33136, 35752, 49856, 66272, 71504, 84911, 99712, 132544, 143008, 169822, 199424, 265088, 286016, 339644, 530176, 572032, 679288, 1144064, 1358576, 2717152, 5434304, 10868608, 21737216]

約数ペア:

[(1, 21737216), (2, 10868608), (4, 5434304), (8, 2717152), (16, 1358576), (19, 1144064), (32, 679288), (38, 572032), (41, 530176), (64, 339644), (76, 286016), (82, 265088), (109, 199424), (128, 169822), (152, 143008), (164, 132544), (218, 99712), (256, 84911), (304, 71504), (328, 66272), (436, 49856), (608, 35752), (656, 33136), (779, 27904), (872, 24928), (1216, 17876), (1312, 16568), (1558, 13952), (1744, 12464), (2071, 10496), (2432, 8938), (2624, 8284), (3116, 6976), (3488, 6232), (4142, 5248), (4469, 4864)]