20212257208

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{967}}^1$

素因数の和:1170

約数の個数: 128

約数和(自身を含む): 45235491840

約数和(自身を除く): 25023234632

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 151, 242, 286, 302, 484, 572, 604, 967, 968, 1144, 1208, 1331, 1573, 1661, 1934, 1963, 2662, 3146, 3322, 3868, 3926, 5324, 6292, 6644, 7736, 7852, 10637, 10648, 12571, 12584, 13288, 15704, 17303, 18271, 21274, 21593, 25142, 34606, 36542, 42548, 43186, 50284, 69212, 73084, 85096, 86372, 100568, 117007, 138281, 138424, 146017, 146168, 172744, 200981, 234014, 237523, 276562, 292034, 401962, 468028, 475046, 553124, 584068, 803924, 936056, 950092, 1106248, 1168136, 1287077, 1521091, 1606187, 1607848, 1898221, 1900184, 2574154, 2612753, 3042182, 3212374, 3796442, 5148308, 5225506, 6084364, 6424748, 7592884, 10296616, 10451012, 12168728, 12849496, 15185768, 16732001, 17668057, 20880431, 20902024, 33464002, 35336114, 41760862, 66928004, 70672228, 83521724, 133856008, 141344456, 167043448, 194348627, 229684741, 388697254, 459369482, 777394508, 918738964, 1554789016, 1837477928, 2526532151, 5053064302, 10106128604, 20212257208]

約数ペア:

[(1, 20212257208), (2, 10106128604), (4, 5053064302), (8, 2526532151), (11, 1837477928), (13, 1554789016), (22, 918738964), (26, 777394508), (44, 459369482), (52, 388697254), (88, 229684741), (104, 194348627), (121, 167043448), (143, 141344456), (151, 133856008), (242, 83521724), (286, 70672228), (302, 66928004), (484, 41760862), (572, 35336114), (604, 33464002), (967, 20902024), (968, 20880431), (1144, 17668057), (1208, 16732001), (1331, 15185768), (1573, 12849496), (1661, 12168728), (1934, 10451012), (1963, 10296616), (2662, 7592884), (3146, 6424748), (3322, 6084364), (3868, 5225506), (3926, 5148308), (5324, 3796442), (6292, 3212374), (6644, 3042182), (7736, 2612753), (7852, 2574154), (10637, 1900184), (10648, 1898221), (12571, 1607848), (12584, 1606187), (13288, 1521091), (15704, 1287077), (17303, 1168136), (18271, 1106248), (21274, 950092), (21593, 936056), (25142, 803924), (34606, 584068), (36542, 553124), (42548, 475046), (43186, 468028), (50284, 401962), (69212, 292034), (73084, 276562), (85096, 237523), (86372, 234014), (100568, 200981), (117007, 172744), (138281, 146168), (138424, 146017)]