19992644

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{743}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 41372352

約数和(自身を除く): 21379708

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 743, 868, 961, 1486, 1922, 2972, 3844, 5201, 6727, 10402, 13454, 20804, 23033, 26908, 46066, 92132, 161231, 322462, 644924, 714023, 1428046, 2856092, 4998161, 9996322, 19992644]

約数ペア:

[(1, 19992644), (2, 9996322), (4, 4998161), (7, 2856092), (14, 1428046), (28, 714023), (31, 644924), (62, 322462), (124, 161231), (217, 92132), (434, 46066), (743, 26908), (868, 23033), (961, 20804), (1486, 13454), (1922, 10402), (2972, 6727), (3844, 5201)]