18921070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1973}}^1$

素因数の和:2124

約数の個数: 32

約数和(自身を含む): 39227328

約数和(自身を除く): 20306258

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 1973, 3946, 4795, 9590, 9865, 13811, 19730, 27622, 69055, 138110, 270301, 540602, 1351505, 1892107, 2703010, 3784214, 9460535, 18921070]

約数ペア:

[(1, 18921070), (2, 9460535), (5, 3784214), (7, 2703010), (10, 1892107), (14, 1351505), (35, 540602), (70, 270301), (137, 138110), (274, 69055), (685, 27622), (959, 19730), (1370, 13811), (1918, 9865), (1973, 9590), (3946, 4795)]