20740984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7603}}^1$

素因数の和:7651

約数の個数: 32

約数和(自身を含む): 43799040

約数和(自身を除く): 23058056

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 124, 248, 341, 682, 1364, 2728, 7603, 15206, 30412, 60824, 83633, 167266, 235693, 334532, 471386, 669064, 942772, 1885544, 2592623, 5185246, 10370492, 20740984]

約数ペア:

[(1, 20740984), (2, 10370492), (4, 5185246), (8, 2592623), (11, 1885544), (22, 942772), (31, 669064), (44, 471386), (62, 334532), (88, 235693), (124, 167266), (248, 83633), (341, 60824), (682, 30412), (1364, 15206), (2728, 7603)]