25468839

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 43748640

約数和(自身を除く): 18279801

約数列:

[1, 3, 9, 11, 17, 33, 37, 51, 99, 111, 153, 187, 333, 407, 409, 561, 629, 1221, 1227, 1683, 1887, 3663, 3681, 4499, 5661, 6919, 6953, 13497, 15133, 20757, 20859, 40491, 45399, 62271, 62577, 76483, 136197, 166463, 229449, 257261, 499389, 688347, 771783, 1498167, 2315349, 2829871, 8489613, 25468839]

約数ペア:

[(1, 25468839), (3, 8489613), (9, 2829871), (11, 2315349), (17, 1498167), (33, 771783), (37, 688347), (51, 499389), (99, 257261), (111, 229449), (153, 166463), (187, 136197), (333, 76483), (407, 62577), (409, 62271), (561, 45399), (629, 40491), (1221, 20859), (1227, 20757), (1683, 15133), (1887, 13497), (3663, 6953), (3681, 6919), (4499, 5661)]