21873441

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10267359

約数列:

[1, 3, 17, 51, 61, 79, 89, 183, 237, 267, 1037, 1343, 1513, 3111, 4029, 4539, 4819, 5429, 7031, 14457, 16287, 21093, 81923, 92293, 119527, 245769, 276879, 358581, 428891, 1286673, 7291147, 21873441]

約数ペア:

[(1, 21873441), (3, 7291147), (17, 1286673), (51, 428891), (61, 358581), (79, 276879), (89, 245769), (183, 119527), (237, 92293), (267, 81923), (1037, 21093), (1343, 16287), (1513, 14457), (3111, 7031), (4029, 5429), (4539, 4819)]