21448576

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 45153360

約数和(自身を除く): 23704784

約数列:

[1, 2, 4, 8, 16, 32, 41, 61, 64, 67, 82, 122, 128, 134, 164, 244, 268, 328, 488, 536, 656, 976, 1072, 1312, 1952, 2144, 2501, 2624, 2747, 3904, 4087, 4288, 5002, 5248, 5494, 7808, 8174, 8576, 10004, 10988, 16348, 20008, 21976, 32696, 40016, 43952, 65392, 80032, 87904, 130784, 160064, 167567, 175808, 261568, 320128, 335134, 351616, 523136, 670268, 1340536, 2681072, 5362144, 10724288, 21448576]

約数ペア:

[(1, 21448576), (2, 10724288), (4, 5362144), (8, 2681072), (16, 1340536), (32, 670268), (41, 523136), (61, 351616), (64, 335134), (67, 320128), (82, 261568), (122, 175808), (128, 167567), (134, 160064), (164, 130784), (244, 87904), (268, 80032), (328, 65392), (488, 43952), (536, 40016), (656, 32696), (976, 21976), (1072, 20008), (1312, 16348), (1952, 10988), (2144, 10004), (2501, 8576), (2624, 8174), (2747, 7808), (3904, 5494), (4087, 5248), (4288, 5002)]