20213447049

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{473527}}^1$

素因数の和:473587

約数の個数: 40

約数和(自身を含む): 33003007488

約数和(自身を除く): 12789560439

約数列:

[1, 3, 9, 17, 27, 31, 51, 81, 93, 153, 279, 459, 527, 837, 1377, 1581, 2511, 4743, 14229, 42687, 473527, 1420581, 4261743, 8049959, 12785229, 14679337, 24149877, 38355687, 44038011, 72449631, 132114033, 217348893, 249548729, 396342099, 652046679, 748646187, 1189026297, 2245938561, 6737815683, 20213447049]

約数ペア:

[(1, 20213447049), (3, 6737815683), (9, 2245938561), (17, 1189026297), (27, 748646187), (31, 652046679), (51, 396342099), (81, 249548729), (93, 217348893), (153, 132114033), (279, 72449631), (459, 44038011), (527, 38355687), (837, 24149877), (1377, 14679337), (1581, 12785229), (2511, 8049959), (4743, 4261743), (14229, 1420581), (42687, 473527)]