21386612

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1861}}^1$

素因数の和:1908

約数の個数: 36

約数和(自身を含む): 42933996

約数和(自身を除く): 21547384

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1861, 2873, 3722, 5746, 7444, 11492, 24193, 31637, 48386, 63274, 96772, 126548, 314509, 411281, 629018, 822562, 1258036, 1645124, 5346653, 10693306, 21386612]

約数ペア:

[(1, 21386612), (2, 10693306), (4, 5346653), (13, 1645124), (17, 1258036), (26, 822562), (34, 629018), (52, 411281), (68, 314509), (169, 126548), (221, 96772), (338, 63274), (442, 48386), (676, 31637), (884, 24193), (1861, 11492), (2873, 7444), (3722, 5746)]