20180907

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:115

約数の個数: 56

約数和(自身を含む): 33576960

約数和(自身を除く): 13396053

約数列:

[1, 3, 9, 19, 27, 31, 47, 57, 81, 93, 141, 171, 243, 279, 423, 513, 589, 729, 837, 893, 1269, 1457, 1539, 1767, 2511, 2679, 3807, 4371, 4617, 5301, 7533, 8037, 11421, 13113, 13851, 15903, 22599, 24111, 27683, 34263, 39339, 47709, 72333, 83049, 118017, 143127, 216999, 249147, 354051, 429381, 650997, 747441, 1062153, 2242323, 6726969, 20180907]

約数ペア:

[(1, 20180907), (3, 6726969), (9, 2242323), (19, 1062153), (27, 747441), (31, 650997), (47, 429381), (57, 354051), (81, 249147), (93, 216999), (141, 143127), (171, 118017), (243, 83049), (279, 72333), (423, 47709), (513, 39339), (589, 34263), (729, 27683), (837, 24111), (893, 22599), (1269, 15903), (1457, 13851), (1539, 13113), (1767, 11421), (2511, 8037), (2679, 7533), (3807, 5301), (4371, 4617)]