2165651901

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1809233}}^1$

素因数の和:1809265

約数の個数: 24

約数和(自身を含む): 3763206720

約数和(自身を除く): 1597554819

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 1809233, 5427699, 12664631, 16283097, 34375427, 37993893, 103126281, 113981679, 240627989, 309378843, 721883967, 2165651901]

約数ペア:

[(1, 2165651901), (3, 721883967), (7, 309378843), (9, 240627989), (19, 113981679), (21, 103126281), (57, 37993893), (63, 34375427), (133, 16283097), (171, 12664631), (399, 5427699), (1197, 1809233)]