25391223

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 43723680

約数和(自身を除く): 18332457

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 109, 117, 143, 181, 327, 429, 543, 981, 1199, 1287, 1417, 1629, 1991, 2353, 3597, 4251, 5973, 7059, 10791, 12753, 15587, 17919, 19729, 21177, 25883, 46761, 59187, 77649, 140283, 177561, 217019, 232947, 256477, 651057, 769431, 1953171, 2308293, 2821247, 8463741, 25391223]

約数ペア:

[(1, 25391223), (3, 8463741), (9, 2821247), (11, 2308293), (13, 1953171), (33, 769431), (39, 651057), (99, 256477), (109, 232947), (117, 217019), (143, 177561), (181, 140283), (327, 77649), (429, 59187), (543, 46761), (981, 25883), (1199, 21177), (1287, 19729), (1417, 17919), (1629, 15587), (1991, 12753), (2353, 10791), (3597, 7059), (4251, 5973)]