21378631248

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{671777}}^1$

素因数の和:671821

約数の個数: 120

約数和(自身を含む): 68223086568

約数和(自身を除く): 46844455320

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 17, 18, 24, 26, 34, 36, 39, 48, 51, 52, 68, 72, 78, 102, 104, 117, 136, 144, 153, 156, 204, 208, 221, 234, 272, 306, 312, 408, 442, 468, 612, 624, 663, 816, 884, 936, 1224, 1326, 1768, 1872, 1989, 2448, 2652, 3536, 3978, 5304, 7956, 10608, 15912, 31824, 671777, 1343554, 2015331, 2687108, 4030662, 5374216, 6045993, 8061324, 8733101, 10748432, 11420209, 12091986, 16122648, 17466202, 22840418, 24183972, 26199303, 32245296, 34260627, 34932404, 45680836, 48367944, 52398606, 68521254, 69864808, 78597909, 91361672, 96735888, 102781881, 104797212, 137042508, 139729616, 148462717, 157195818, 182723344, 205563762, 209594424, 274085016, 296925434, 314391636, 411127524, 419188848, 445388151, 548170032, 593850868, 628783272, 822255048, 890776302, 1187701736, 1257566544, 1336164453, 1644510096, 1781552604, 2375403472, 2672328906, 3563105208, 5344657812, 7126210416, 10689315624, 21378631248]

約数ペア:

[(1, 21378631248), (2, 10689315624), (3, 7126210416), (4, 5344657812), (6, 3563105208), (8, 2672328906), (9, 2375403472), (12, 1781552604), (13, 1644510096), (16, 1336164453), (17, 1257566544), (18, 1187701736), (24, 890776302), (26, 822255048), (34, 628783272), (36, 593850868), (39, 548170032), (48, 445388151), (51, 419188848), (52, 411127524), (68, 314391636), (72, 296925434), (78, 274085016), (102, 209594424), (104, 205563762), (117, 182723344), (136, 157195818), (144, 148462717), (153, 139729616), (156, 137042508), (204, 104797212), (208, 102781881), (221, 96735888), (234, 91361672), (272, 78597909), (306, 69864808), (312, 68521254), (408, 52398606), (442, 48367944), (468, 45680836), (612, 34932404), (624, 34260627), (663, 32245296), (816, 26199303), (884, 24183972), (936, 22840418), (1224, 17466202), (1326, 16122648), (1768, 12091986), (1872, 11420209), (1989, 10748432), (2448, 8733101), (2652, 8061324), (3536, 6045993), (3978, 5374216), (5304, 4030662), (7956, 2687108), (10608, 2015331), (15912, 1343554), (31824, 671777)]