21553580

素因数分解:

$2^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1741}}^1$

素因数の和:2369

約数の個数: 24

約数和(自身を含む): 45361680

約数和(自身を除く): 23808100

約数列:

[1, 2, 4, 5, 10, 20, 619, 1238, 1741, 2476, 3095, 3482, 6190, 6964, 8705, 12380, 17410, 34820, 1077679, 2155358, 4310716, 5388395, 10776790, 21553580]

約数ペア:

[(1, 21553580), (2, 10776790), (4, 5388395), (5, 4310716), (10, 2155358), (20, 1077679), (619, 34820), (1238, 17410), (1741, 12380), (2476, 8705), (3095, 6964), (3482, 6190)]