21925816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 25248584

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 59, 82, 88, 103, 118, 164, 206, 236, 328, 412, 451, 472, 649, 824, 902, 1133, 1298, 1804, 2266, 2419, 2596, 3608, 4223, 4532, 4838, 5192, 6077, 8446, 9064, 9676, 12154, 16892, 19352, 24308, 26609, 33784, 46453, 48616, 53218, 66847, 92906, 106436, 133694, 185812, 212872, 249157, 267388, 371624, 498314, 534776, 996628, 1993256, 2740727, 5481454, 10962908, 21925816]

約数ペア:

[(1, 21925816), (2, 10962908), (4, 5481454), (8, 2740727), (11, 1993256), (22, 996628), (41, 534776), (44, 498314), (59, 371624), (82, 267388), (88, 249157), (103, 212872), (118, 185812), (164, 133694), (206, 106436), (236, 92906), (328, 66847), (412, 53218), (451, 48616), (472, 46453), (649, 33784), (824, 26609), (902, 24308), (1133, 19352), (1298, 16892), (1804, 12154), (2266, 9676), (2419, 9064), (2596, 8446), (3608, 6077), (4223, 5192), (4532, 4838)]