18917808

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 160

約数和(自身を含む): 61996032

約数和(自身を除く): 43078224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 61, 71, 78, 84, 91, 104, 112, 122, 142, 156, 168, 182, 183, 208, 213, 244, 273, 284, 312, 336, 364, 366, 426, 427, 488, 497, 546, 568, 624, 728, 732, 793, 852, 854, 923, 976, 994, 1092, 1136, 1281, 1456, 1464, 1491, 1586, 1704, 1708, 1846, 1988, 2184, 2379, 2562, 2769, 2928, 2982, 3172, 3408, 3416, 3692, 3976, 4331, 4368, 4758, 5124, 5538, 5551, 5964, 6344, 6461, 6832, 7384, 7952, 8662, 9516, 10248, 11076, 11102, 11928, 12688, 12922, 12993, 14768, 16653, 17324, 19032, 19383, 20496, 22152, 22204, 23856, 25844, 25986, 30317, 33306, 34648, 38064, 38766, 44304, 44408, 51688, 51972, 56303, 60634, 66612, 69296, 77532, 88816, 90951, 103376, 103944, 112606, 121268, 133224, 155064, 168909, 181902, 207888, 225212, 242536, 266448, 310128, 337818, 363804, 394121, 450424, 485072, 675636, 727608, 788242, 900848, 1182363, 1351272, 1455216, 1576484, 2364726, 2702544, 3152968, 4729452, 6305936, 9458904, 18917808]

約数ペア:

[(1, 18917808), (2, 9458904), (3, 6305936), (4, 4729452), (6, 3152968), (7, 2702544), (8, 2364726), (12, 1576484), (13, 1455216), (14, 1351272), (16, 1182363), (21, 900848), (24, 788242), (26, 727608), (28, 675636), (39, 485072), (42, 450424), (48, 394121), (52, 363804), (56, 337818), (61, 310128), (71, 266448), (78, 242536), (84, 225212), (91, 207888), (104, 181902), (112, 168909), (122, 155064), (142, 133224), (156, 121268), (168, 112606), (182, 103944), (183, 103376), (208, 90951), (213, 88816), (244, 77532), (273, 69296), (284, 66612), (312, 60634), (336, 56303), (364, 51972), (366, 51688), (426, 44408), (427, 44304), (488, 38766), (497, 38064), (546, 34648), (568, 33306), (624, 30317), (728, 25986), (732, 25844), (793, 23856), (852, 22204), (854, 22152), (923, 20496), (976, 19383), (994, 19032), (1092, 17324), (1136, 16653), (1281, 14768), (1456, 12993), (1464, 12922), (1491, 12688), (1586, 11928), (1704, 11102), (1708, 11076), (1846, 10248), (1988, 9516), (2184, 8662), (2379, 7952), (2562, 7384), (2769, 6832), (2928, 6461), (2982, 6344), (3172, 5964), (3408, 5551), (3416, 5538), (3692, 5124), (3976, 4758), (4331, 4368)]