25505469

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 42857920

約数和(自身を除く): 17352451

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 121, 211, 297, 333, 363, 407, 633, 999, 1089, 1221, 1899, 2321, 3267, 3663, 4477, 5697, 6963, 7807, 10989, 13431, 20889, 23421, 25531, 40293, 62667, 70263, 76593, 85877, 120879, 210789, 229779, 257631, 689337, 772893, 944647, 2318679, 2833941, 8501823, 25505469]

約数ペア:

[(1, 25505469), (3, 8501823), (9, 2833941), (11, 2318679), (27, 944647), (33, 772893), (37, 689337), (99, 257631), (111, 229779), (121, 210789), (211, 120879), (297, 85877), (333, 76593), (363, 70263), (407, 62667), (633, 40293), (999, 25531), (1089, 23421), (1221, 20889), (1899, 13431), (2321, 10989), (3267, 7807), (3663, 6963), (4477, 5697)]