21242025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13487}}^1$

素因数の和:13510

約数の個数: 36

約数和(自身を含む): 43485312

約数和(自身を除く): 22243287

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13487, 40461, 67435, 94409, 121383, 202305, 283227, 337175, 472045, 606915, 849681, 1011525, 1416135, 2360225, 3034575, 4248405, 7080675, 21242025]

約数ペア:

[(1, 21242025), (3, 7080675), (5, 4248405), (7, 3034575), (9, 2360225), (15, 1416135), (21, 1011525), (25, 849681), (35, 606915), (45, 472045), (63, 337175), (75, 283227), (105, 202305), (175, 121383), (225, 94409), (315, 67435), (525, 40461), (1575, 13487)]