21273975

素因数分解:

$3^3\times 5^2\times {\mathrm{31517}}^1$

素因数の和:31536

約数の個数: 24

約数和(自身を含む): 39082320

約数和(自身を除く): 17808345

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31517, 94551, 157585, 283653, 472755, 787925, 850959, 1418265, 2363775, 4254795, 7091325, 21273975]

約数ペア:

[(1, 21273975), (3, 7091325), (5, 4254795), (9, 2363775), (15, 1418265), (25, 850959), (27, 787925), (45, 472755), (75, 283653), (135, 157585), (225, 94551), (675, 31517)]