20896972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{1153}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 38386656

約数和(自身を除く): 17489684

約数列:

[1, 2, 4, 23, 46, 92, 197, 394, 788, 1153, 2306, 4531, 4612, 9062, 18124, 26519, 53038, 106076, 227141, 454282, 908564, 5224243, 10448486, 20896972]

約数ペア:

[(1, 20896972), (2, 10448486), (4, 5224243), (23, 908564), (46, 454282), (92, 227141), (197, 106076), (394, 53038), (788, 26519), (1153, 18124), (2306, 9062), (4531, 4612)]