21815097

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 33177600

約数和(自身を除く): 11362503

約数列:

[1, 3, 17, 19, 47, 51, 57, 141, 323, 479, 799, 893, 969, 1437, 2397, 2679, 8143, 9101, 15181, 22513, 24429, 27303, 45543, 67539, 154717, 382721, 427747, 464151, 1148163, 1283241, 7271699, 21815097]

約数ペア:

[(1, 21815097), (3, 7271699), (17, 1283241), (19, 1148163), (47, 464151), (51, 427747), (57, 382721), (141, 154717), (323, 67539), (479, 45543), (799, 27303), (893, 24429), (969, 22513), (1437, 15181), (2397, 9101), (2679, 8143)]