19979432

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2551}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 41342400

約数和(自身を除く): 21362968

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2551, 3916, 5102, 7832, 10204, 20408, 28061, 56122, 112244, 224488, 227039, 454078, 908156, 1816312, 2497429, 4994858, 9989716, 19979432]

約数ペア:

[(1, 19979432), (2, 9989716), (4, 4994858), (8, 2497429), (11, 1816312), (22, 908156), (44, 454078), (88, 227039), (89, 224488), (178, 112244), (356, 56122), (712, 28061), (979, 20408), (1958, 10204), (2551, 7832), (3916, 5102)]