20423528

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{571}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 40772160

約数和(自身を除く): 20348632

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 263, 526, 571, 1052, 1142, 2104, 2284, 4471, 4568, 8942, 9707, 17884, 19414, 35768, 38828, 77656, 150173, 300346, 600692, 1201384, 2552941, 5105882, 10211764, 20423528]

約数ペア:

[(1, 20423528), (2, 10211764), (4, 5105882), (8, 2552941), (17, 1201384), (34, 600692), (68, 300346), (136, 150173), (263, 77656), (526, 38828), (571, 35768), (1052, 19414), (1142, 17884), (2104, 9707), (2284, 8942), (4471, 4568)]