18978984

素因数分解:

$2^3\times 3^2\times {\mathrm{263597}}^1$

素因数の和:263609

約数の個数: 24

約数和(自身を含む): 51401610

約数和(自身を除く): 32422626

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 263597, 527194, 790791, 1054388, 1581582, 2108776, 2372373, 3163164, 4744746, 6326328, 9489492, 18978984]

約数ペア:

[(1, 18978984), (2, 9489492), (3, 6326328), (4, 4744746), (6, 3163164), (8, 2372373), (9, 2108776), (12, 1581582), (18, 1054388), (24, 790791), (36, 527194), (72, 263597)]