21232780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14543}}^1$

素因数の和:14625

約数の個数: 24

約数和(自身を含む): 45202752

約数和(自身を除く): 23969972

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14543, 29086, 58172, 72715, 145430, 290860, 1061639, 2123278, 4246556, 5308195, 10616390, 21232780]

約数ペア:

[(1, 21232780), (2, 10616390), (4, 5308195), (5, 4246556), (10, 2123278), (20, 1061639), (73, 290860), (146, 145430), (292, 72715), (365, 58172), (730, 29086), (1460, 14543)]