21314025

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2203}}^1$

素因数の和:2262

約数の個数: 36

約数和(自身を含む): 39081328

約数和(自身を除く): 17767303

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2203, 3225, 6609, 9675, 11015, 19827, 33045, 55075, 94729, 99135, 165225, 284187, 473645, 495675, 852561, 1420935, 2368225, 4262805, 7104675, 21314025]

約数ペア:

[(1, 21314025), (3, 7104675), (5, 4262805), (9, 2368225), (15, 1420935), (25, 852561), (43, 495675), (45, 473645), (75, 284187), (129, 165225), (215, 99135), (225, 94729), (387, 55075), (645, 33045), (1075, 19827), (1935, 11015), (2203, 9675), (3225, 6609)]