678697938

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{1639367}}^1$

素因数の和:1639398

約数の個数: 24

約数和(自身を含む): 1534448448

約数和(自身を除く): 855750510

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 1639367, 3278734, 4918101, 9836202, 14754303, 29508606, 37705441, 75410882, 113116323, 226232646, 339348969, 678697938]

約数ペア:

[(1, 678697938), (2, 339348969), (3, 226232646), (6, 113116323), (9, 75410882), (18, 37705441), (23, 29508606), (46, 14754303), (69, 9836202), (138, 4918101), (207, 3278734), (414, 1639367)]