16489431

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:428

約数の個数: 36

約数和(自身を含む): 28009800

約数和(自身を除く): 11520369

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 269, 417, 441, 807, 973, 1251, 1883, 2421, 2919, 5649, 6811, 8757, 13181, 16947, 20433, 37391, 39543, 61299, 112173, 118629, 261737, 336519, 785211, 1832159, 2355633, 5496477, 16489431]

約数ペア:

[(1, 16489431), (3, 5496477), (7, 2355633), (9, 1832159), (21, 785211), (49, 336519), (63, 261737), (139, 118629), (147, 112173), (269, 61299), (417, 39543), (441, 37391), (807, 20433), (973, 16947), (1251, 13181), (1883, 8757), (2421, 6811), (2919, 5649)]