18320984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3413}}^1$

素因数の和:3491

約数の個数: 32

約数和(自身を含む): 38100240

約数和(自身を除く): 19779256

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 122, 244, 488, 671, 1342, 2684, 3413, 5368, 6826, 13652, 27304, 37543, 75086, 150172, 208193, 300344, 416386, 832772, 1665544, 2290123, 4580246, 9160492, 18320984]

約数ペア:

[(1, 18320984), (2, 9160492), (4, 4580246), (8, 2290123), (11, 1665544), (22, 832772), (44, 416386), (61, 300344), (88, 208193), (122, 150172), (244, 75086), (488, 37543), (671, 27304), (1342, 13652), (2684, 6826), (3413, 5368)]