21121232

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2927}}^1$

素因数の和:2987

約数の個数: 40

約数和(自身を含む): 45747072

約数和(自身を除く): 24625840

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2927, 3608, 5854, 7216, 11708, 23416, 32197, 46832, 64394, 120007, 128788, 240014, 257576, 480028, 515152, 960056, 1320077, 1920112, 2640154, 5280308, 10560616, 21121232]

約数ペア:

[(1, 21121232), (2, 10560616), (4, 5280308), (8, 2640154), (11, 1920112), (16, 1320077), (22, 960056), (41, 515152), (44, 480028), (82, 257576), (88, 240014), (164, 128788), (176, 120007), (328, 64394), (451, 46832), (656, 32197), (902, 23416), (1804, 11708), (2927, 7216), (3608, 5854)]