81702978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1945309}}^1$

素因数の和:1945321

約数の個数: 16

約数和(自身を含む): 186749760

約数和(自身を除く): 105046782

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1945309, 3890618, 5835927, 11671854, 13617163, 27234326, 40851489, 81702978]

約数ペア:

[(1, 81702978), (2, 40851489), (3, 27234326), (6, 13617163), (7, 11671854), (14, 5835927), (21, 3890618), (42, 1945309)]