19929753

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 11404647

約数列:

[1, 3, 9, 23, 27, 67, 69, 201, 207, 479, 603, 621, 1437, 1541, 1809, 4311, 4623, 11017, 12933, 13869, 32093, 33051, 41607, 96279, 99153, 288837, 297459, 738139, 866511, 2214417, 6643251, 19929753]

約数ペア:

[(1, 19929753), (3, 6643251), (9, 2214417), (23, 866511), (27, 738139), (67, 297459), (69, 288837), (201, 99153), (207, 96279), (479, 41607), (603, 33051), (621, 32093), (1437, 13869), (1541, 12933), (1809, 11017), (4311, 4623)]