19994810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{2713}}^1$

素因数の和:2798

約数の個数: 32

約数和(自身を含む): 39863232

約数和(自身を除く): 19868422

約数列:

[1, 2, 5, 10, 11, 22, 55, 67, 110, 134, 335, 670, 737, 1474, 2713, 3685, 5426, 7370, 13565, 27130, 29843, 59686, 149215, 181771, 298430, 363542, 908855, 1817710, 1999481, 3998962, 9997405, 19994810]

約数ペア:

[(1, 19994810), (2, 9997405), (5, 3998962), (10, 1999481), (11, 1817710), (22, 908855), (55, 363542), (67, 298430), (110, 181771), (134, 149215), (335, 59686), (670, 29843), (737, 27130), (1474, 13565), (2713, 7370), (3685, 5426)]