19879548

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 52870608

約数和(自身を除く): 32991060

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 353, 361, 494, 706, 722, 741, 988, 1059, 1083, 1412, 1444, 1482, 2118, 2166, 2964, 4236, 4332, 4589, 4693, 6707, 9178, 9386, 13414, 13767, 14079, 18356, 18772, 20121, 26828, 27534, 28158, 40242, 55068, 56316, 80484, 87191, 127433, 174382, 254866, 261573, 348764, 382299, 509732, 523146, 764598, 1046292, 1529196, 1656629, 3313258, 4969887, 6626516, 9939774, 19879548]

約数ペア:

[(1, 19879548), (2, 9939774), (3, 6626516), (4, 4969887), (6, 3313258), (12, 1656629), (13, 1529196), (19, 1046292), (26, 764598), (38, 523146), (39, 509732), (52, 382299), (57, 348764), (76, 261573), (78, 254866), (114, 174382), (156, 127433), (228, 87191), (247, 80484), (353, 56316), (361, 55068), (494, 40242), (706, 28158), (722, 27534), (741, 26828), (988, 20121), (1059, 18772), (1083, 18356), (1412, 14079), (1444, 13767), (1482, 13414), (2118, 9386), (2166, 9178), (2964, 6707), (4236, 4693), (4332, 4589)]