21245133

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1319}}^1$

素因数の和:1401

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 14236467

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 1319, 2301, 3957, 5369, 9233, 16107, 17147, 27699, 51441, 77821, 120029, 233463, 360087, 544747, 1011673, 1634241, 3035019, 7081711, 21245133]

約数ペア:

[(1, 21245133), (3, 7081711), (7, 3035019), (13, 1634241), (21, 1011673), (39, 544747), (59, 360087), (91, 233463), (177, 120029), (273, 77821), (413, 51441), (767, 27699), (1239, 17147), (1319, 16107), (2301, 9233), (3957, 5369)]