21163136

素因数分解:

$2^7\times {\mathrm{101}}^1\times {\mathrm{1637}}^1$

素因数の和:1752

約数の個数: 32

約数和(自身を含む): 42604380

約数和(自身を除く): 21441244

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 128, 202, 404, 808, 1616, 1637, 3232, 3274, 6464, 6548, 12928, 13096, 26192, 52384, 104768, 165337, 209536, 330674, 661348, 1322696, 2645392, 5290784, 10581568, 21163136]

約数ペア:

[(1, 21163136), (2, 10581568), (4, 5290784), (8, 2645392), (16, 1322696), (32, 661348), (64, 330674), (101, 209536), (128, 165337), (202, 104768), (404, 52384), (808, 26192), (1616, 13096), (1637, 12928), (3232, 6548), (3274, 6464)]