21479704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3673}}^1$

素因数の和:3739

約数の個数: 32

約数和(自身を含む): 43647120

約数和(自身を除く): 22167416

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3673, 5848, 7346, 14692, 29384, 62441, 124882, 157939, 249764, 315878, 499528, 631756, 1263512, 2684963, 5369926, 10739852, 21479704]

約数ペア:

[(1, 21479704), (2, 10739852), (4, 5369926), (8, 2684963), (17, 1263512), (34, 631756), (43, 499528), (68, 315878), (86, 249764), (136, 157939), (172, 124882), (344, 62441), (731, 29384), (1462, 14692), (2924, 7346), (3673, 5848)]