21220072

素因数分解:

$2^3\times {\mathrm{1319}}^1\times {\mathrm{2011}}^1$

素因数の和:3336

約数の個数: 16

約数和(自身を含む): 39837600

約数和(自身を除く): 18617528

約数列:

[1, 2, 4, 8, 1319, 2011, 2638, 4022, 5276, 8044, 10552, 16088, 2652509, 5305018, 10610036, 21220072]

約数ペア:

[(1, 21220072), (2, 10610036), (4, 5305018), (8, 2652509), (1319, 16088), (2011, 10552), (2638, 8044), (4022, 5276)]