20838532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2143}}^1$

素因数の和:2188

約数の個数: 48

約数和(自身を含む): 45384192

約数和(自身を除く): 24545660

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 187, 221, 286, 374, 442, 572, 748, 884, 2143, 2431, 4286, 4862, 8572, 9724, 23573, 27859, 36431, 47146, 55718, 72862, 94292, 111436, 145724, 306449, 400741, 473603, 612898, 801482, 947206, 1225796, 1602964, 1894412, 5209633, 10419266, 20838532]

約数ペア:

[(1, 20838532), (2, 10419266), (4, 5209633), (11, 1894412), (13, 1602964), (17, 1225796), (22, 947206), (26, 801482), (34, 612898), (44, 473603), (52, 400741), (68, 306449), (143, 145724), (187, 111436), (221, 94292), (286, 72862), (374, 55718), (442, 47146), (572, 36431), (748, 27859), (884, 23573), (2143, 9724), (2431, 8572), (4286, 4862)]