20431528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2767}}^1$

素因数の和:2857

約数の個数: 32

約数和(自身を含む): 41852160

約数和(自身を除く): 21420632

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2767, 3692, 5534, 7384, 11068, 22136, 35971, 71942, 143884, 196457, 287768, 392914, 785828, 1571656, 2553941, 5107882, 10215764, 20431528]

約数ペア:

[(1, 20431528), (2, 10215764), (4, 5107882), (8, 2553941), (13, 1571656), (26, 785828), (52, 392914), (71, 287768), (104, 196457), (142, 143884), (284, 71942), (568, 35971), (923, 22136), (1846, 11068), (2767, 7384), (3692, 5534)]