389618946

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{155723}}^1$

素因数の和:155870

約数の個数: 24

約数和(自身を含む): 850253040

約数和(自身を除く): 460634094

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 155723, 311446, 467169, 934338, 1401507, 2803014, 21645497, 43290994, 64936491, 129872982, 194809473, 389618946]

約数ペア:

[(1, 389618946), (2, 194809473), (3, 129872982), (6, 64936491), (9, 43290994), (18, 21645497), (139, 2803014), (278, 1401507), (417, 934338), (834, 467169), (1251, 311446), (2502, 155723)]