21831057

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2969}}^1$

素因数の和:3037

約数の個数: 24

約数和(自身を含む): 33976800

約数和(自身を除く): 12145743

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2969, 7353, 8907, 26721, 56411, 127667, 169233, 383001, 507699, 1149003, 2425673, 7277019, 21831057]

約数ペア:

[(1, 21831057), (3, 7277019), (9, 2425673), (19, 1149003), (43, 507699), (57, 383001), (129, 169233), (171, 127667), (387, 56411), (817, 26721), (2451, 8907), (2969, 7353)]