20451258

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 49459200

約数和(自身を除く): 29007942

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 93, 114, 171, 186, 279, 342, 513, 558, 589, 643, 837, 1026, 1178, 1286, 1674, 1767, 1929, 3534, 3858, 5301, 5787, 10602, 11574, 12217, 15903, 17361, 19933, 24434, 31806, 34722, 36651, 39866, 59799, 73302, 109953, 119598, 179397, 219906, 329859, 358794, 378727, 538191, 659718, 757454, 1076382, 1136181, 2272362, 3408543, 6817086, 10225629, 20451258]

約数ペア:

[(1, 20451258), (2, 10225629), (3, 6817086), (6, 3408543), (9, 2272362), (18, 1136181), (19, 1076382), (27, 757454), (31, 659718), (38, 538191), (54, 378727), (57, 358794), (62, 329859), (93, 219906), (114, 179397), (171, 119598), (186, 109953), (279, 73302), (342, 59799), (513, 39866), (558, 36651), (589, 34722), (643, 31806), (837, 24434), (1026, 19933), (1178, 17361), (1286, 15903), (1674, 12217), (1767, 11574), (1929, 10602), (3534, 5787), (3858, 5301)]