20894874

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37165926

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 49, 66, 71, 77, 78, 91, 98, 142, 143, 147, 154, 182, 213, 231, 273, 286, 294, 343, 426, 429, 462, 497, 539, 546, 637, 686, 781, 858, 923, 994, 1001, 1029, 1078, 1274, 1491, 1562, 1617, 1846, 1911, 2002, 2058, 2343, 2769, 2982, 3003, 3234, 3479, 3773, 3822, 4459, 4686, 5467, 5538, 6006, 6461, 6958, 7007, 7546, 8918, 10153, 10437, 10934, 11319, 12922, 13377, 14014, 16401, 19383, 20306, 20874, 21021, 22638, 24353, 26754, 30459, 32802, 38269, 38766, 42042, 45227, 48706, 49049, 60918, 71071, 73059, 76538, 90454, 98098, 114807, 135681, 142142, 146118, 147147, 213213, 229614, 267883, 271362, 294294, 316589, 426426, 497497, 535766, 633178, 803649, 949767, 994994, 1492491, 1607298, 1899534, 2984982, 3482479, 6964958, 10447437, 20894874]

約数ペア:

[(1, 20894874), (2, 10447437), (3, 6964958), (6, 3482479), (7, 2984982), (11, 1899534), (13, 1607298), (14, 1492491), (21, 994994), (22, 949767), (26, 803649), (33, 633178), (39, 535766), (42, 497497), (49, 426426), (66, 316589), (71, 294294), (77, 271362), (78, 267883), (91, 229614), (98, 213213), (142, 147147), (143, 146118), (147, 142142), (154, 135681), (182, 114807), (213, 98098), (231, 90454), (273, 76538), (286, 73059), (294, 71071), (343, 60918), (426, 49049), (429, 48706), (462, 45227), (497, 42042), (539, 38766), (546, 38269), (637, 32802), (686, 30459), (781, 26754), (858, 24353), (923, 22638), (994, 21021), (1001, 20874), (1029, 20306), (1078, 19383), (1274, 16401), (1491, 14014), (1562, 13377), (1617, 12922), (1846, 11319), (1911, 10934), (2002, 10437), (2058, 10153), (2343, 8918), (2769, 7546), (2982, 7007), (3003, 6958), (3234, 6461), (3479, 6006), (3773, 5538), (3822, 5467), (4459, 4686)]