21638529

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1777}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 35844480

約数和(自身を除く): 14205951

約数列:

[1, 3, 9, 11, 27, 33, 41, 99, 123, 297, 369, 451, 1107, 1353, 1777, 4059, 5331, 12177, 15993, 19547, 47979, 58641, 72857, 175923, 218571, 527769, 655713, 801427, 1967139, 2404281, 7212843, 21638529]

約数ペア:

[(1, 21638529), (3, 7212843), (9, 2404281), (11, 1967139), (27, 801427), (33, 655713), (41, 527769), (99, 218571), (123, 175923), (297, 72857), (369, 58641), (451, 47979), (1107, 19547), (1353, 15993), (1777, 12177), (4059, 5331)]