19681970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25561}}^1$

素因数の和:25586

約数の個数: 32

約数和(自身を含む): 44171136

約数和(自身を除く): 24489166

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 25561, 51122, 127805, 178927, 255610, 281171, 357854, 562342, 894635, 1405855, 1789270, 1968197, 2811710, 3936394, 9840985, 19681970]

約数ペア:

[(1, 19681970), (2, 9840985), (5, 3936394), (7, 2811710), (10, 1968197), (11, 1789270), (14, 1405855), (22, 894635), (35, 562342), (55, 357854), (70, 281171), (77, 255610), (110, 178927), (154, 127805), (385, 51122), (770, 25561)]