20615385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{196337}}^1$

素因数の和:196352

約数の個数: 16

約数和(自身を含む): 37696896

約数和(自身を除く): 17081511

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 196337, 589011, 981685, 1374359, 2945055, 4123077, 6871795, 20615385]

約数ペア:

[(1, 20615385), (3, 6871795), (5, 4123077), (7, 2945055), (15, 1374359), (21, 981685), (35, 589011), (105, 196337)]