25289817

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 40888320

約数和(自身を除く): 15598503

約数列:

[1, 3, 7, 19, 21, 57, 133, 241, 263, 399, 723, 789, 1687, 1841, 4579, 4997, 5061, 5523, 13737, 14991, 32053, 34979, 63383, 96159, 104937, 190149, 443681, 1204277, 1331043, 3612831, 8429939, 25289817]

約数ペア:

[(1, 25289817), (3, 8429939), (7, 3612831), (19, 1331043), (21, 1204277), (57, 443681), (133, 190149), (241, 104937), (263, 96159), (399, 63383), (723, 34979), (789, 32053), (1687, 14991), (1841, 13737), (4579, 5523), (4997, 5061)]