19939365

素因数分解:

$3^5\times 5^1\times {\mathrm{16411}}^1$

素因数の和:16431

約数の個数: 24

約数和(自身を含む): 35843808

約数和(自身を除く): 15904443

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16411, 49233, 82055, 147699, 246165, 443097, 738495, 1329291, 2215485, 3987873, 6646455, 19939365]

約数ペア:

[(1, 19939365), (3, 6646455), (5, 3987873), (9, 2215485), (15, 1329291), (27, 738495), (45, 443097), (81, 246165), (135, 147699), (243, 82055), (405, 49233), (1215, 16411)]