21193664

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:661

約数の個数: 56

約数和(自身を含む): 45872400

約数和(自身を除く): 24678736

約数列:

[1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 152, 232, 304, 464, 551, 601, 608, 928, 1102, 1202, 1216, 1856, 2204, 2404, 4408, 4808, 8816, 9616, 11419, 17429, 17632, 19232, 22838, 34858, 35264, 38464, 45676, 69716, 91352, 139432, 182704, 278864, 331151, 365408, 557728, 662302, 730816, 1115456, 1324604, 2649208, 5298416, 10596832, 21193664]

約数ペア:

[(1, 21193664), (2, 10596832), (4, 5298416), (8, 2649208), (16, 1324604), (19, 1115456), (29, 730816), (32, 662302), (38, 557728), (58, 365408), (64, 331151), (76, 278864), (116, 182704), (152, 139432), (232, 91352), (304, 69716), (464, 45676), (551, 38464), (601, 35264), (608, 34858), (928, 22838), (1102, 19232), (1202, 17632), (1216, 17429), (1856, 11419), (2204, 9616), (2404, 8816), (4408, 4808)]