20181087738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{2861}}^1\times {\mathrm{18661}}^1$

素因数の和:21540

約数の個数: 64

約数和(自身を含む): 51274218240

約数和(自身を除く): 31093130502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 2861, 5722, 8583, 17166, 18661, 20027, 25749, 37322, 40054, 51498, 55983, 60081, 77247, 111966, 120162, 130627, 154494, 167949, 180243, 261254, 335898, 360486, 391881, 503847, 540729, 783762, 1007694, 1081458, 1175643, 2351286, 3526929, 7053858, 53389121, 106778242, 160167363, 320334726, 373723847, 480502089, 747447694, 961004178, 1121171541, 1441506267, 2242343082, 2883012534, 3363514623, 6727029246, 10090543869, 20181087738]

約数ペア:

[(1, 20181087738), (2, 10090543869), (3, 6727029246), (6, 3363514623), (7, 2883012534), (9, 2242343082), (14, 1441506267), (18, 1121171541), (21, 961004178), (27, 747447694), (42, 480502089), (54, 373723847), (63, 320334726), (126, 160167363), (189, 106778242), (378, 53389121), (2861, 7053858), (5722, 3526929), (8583, 2351286), (17166, 1175643), (18661, 1081458), (20027, 1007694), (25749, 783762), (37322, 540729), (40054, 503847), (51498, 391881), (55983, 360486), (60081, 335898), (77247, 261254), (111966, 180243), (120162, 167949), (130627, 154494)]