19660147208

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{2089}}^1\times {\mathrm{6961}}^1$

素因数の和:9082

約数の個数: 48

約数和(自身を含む): 39941342100

約数和(自身を除く): 20281194892

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 2089, 4178, 6961, 8356, 13922, 16712, 27157, 27844, 54314, 55688, 90493, 108628, 180986, 217256, 353041, 361972, 706082, 723944, 1176409, 1412164, 2352818, 2824328, 4705636, 9411272, 14541529, 29083058, 58166116, 116332232, 189039877, 378079754, 756159508, 1512319016, 2457518401, 4915036802, 9830073604, 19660147208]

約数ペア:

[(1, 19660147208), (2, 9830073604), (4, 4915036802), (8, 2457518401), (13, 1512319016), (26, 756159508), (52, 378079754), (104, 189039877), (169, 116332232), (338, 58166116), (676, 29083058), (1352, 14541529), (2089, 9411272), (4178, 4705636), (6961, 2824328), (8356, 2352818), (13922, 1412164), (16712, 1176409), (27157, 723944), (27844, 706082), (54314, 361972), (55688, 353041), (90493, 217256), (108628, 180986)]