19787768

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 50848560

約数和(自身を除く): 31060792

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 49, 52, 56, 77, 88, 91, 98, 104, 143, 154, 182, 196, 286, 308, 353, 364, 392, 539, 572, 616, 637, 706, 728, 1001, 1078, 1144, 1274, 1412, 2002, 2156, 2471, 2548, 2824, 3883, 4004, 4312, 4589, 4942, 5096, 7007, 7766, 8008, 9178, 9884, 14014, 15532, 17297, 18356, 19768, 27181, 28028, 31064, 32123, 34594, 36712, 50479, 54362, 56056, 64246, 69188, 100958, 108724, 128492, 138376, 190267, 201916, 217448, 224861, 256984, 353353, 380534, 403832, 449722, 706706, 761068, 899444, 1413412, 1522136, 1798888, 2473471, 2826824, 4946942, 9893884, 19787768]

約数ペア:

[(1, 19787768), (2, 9893884), (4, 4946942), (7, 2826824), (8, 2473471), (11, 1798888), (13, 1522136), (14, 1413412), (22, 899444), (26, 761068), (28, 706706), (44, 449722), (49, 403832), (52, 380534), (56, 353353), (77, 256984), (88, 224861), (91, 217448), (98, 201916), (104, 190267), (143, 138376), (154, 128492), (182, 108724), (196, 100958), (286, 69188), (308, 64246), (353, 56056), (364, 54362), (392, 50479), (539, 36712), (572, 34594), (616, 32123), (637, 31064), (706, 28028), (728, 27181), (1001, 19768), (1078, 18356), (1144, 17297), (1274, 15532), (1412, 14014), (2002, 9884), (2156, 9178), (2471, 8008), (2548, 7766), (2824, 7007), (3883, 5096), (4004, 4942), (4312, 4589)]