20397132

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:428

約数の個数: 108

約数和(自身を含む): 62078016

約数和(自身を除く): 41680884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 62, 63, 84, 93, 98, 124, 126, 147, 186, 196, 217, 252, 279, 294, 372, 373, 434, 441, 558, 588, 651, 746, 868, 882, 1116, 1119, 1302, 1492, 1519, 1764, 1953, 2238, 2604, 2611, 3038, 3357, 3906, 4476, 4557, 5222, 6076, 6714, 7812, 7833, 9114, 10444, 11563, 13428, 13671, 15666, 18228, 18277, 23126, 23499, 27342, 31332, 34689, 36554, 46252, 46998, 54684, 54831, 69378, 73108, 80941, 93996, 104067, 109662, 138756, 161882, 164493, 208134, 219324, 242823, 323764, 328986, 416268, 485646, 566587, 657972, 728469, 971292, 1133174, 1456938, 1699761, 2266348, 2913876, 3399522, 5099283, 6799044, 10198566, 20397132]

約数ペア:

[(1, 20397132), (2, 10198566), (3, 6799044), (4, 5099283), (6, 3399522), (7, 2913876), (9, 2266348), (12, 1699761), (14, 1456938), (18, 1133174), (21, 971292), (28, 728469), (31, 657972), (36, 566587), (42, 485646), (49, 416268), (62, 328986), (63, 323764), (84, 242823), (93, 219324), (98, 208134), (124, 164493), (126, 161882), (147, 138756), (186, 109662), (196, 104067), (217, 93996), (252, 80941), (279, 73108), (294, 69378), (372, 54831), (373, 54684), (434, 46998), (441, 46252), (558, 36554), (588, 34689), (651, 31332), (746, 27342), (868, 23499), (882, 23126), (1116, 18277), (1119, 18228), (1302, 15666), (1492, 13671), (1519, 13428), (1764, 11563), (1953, 10444), (2238, 9114), (2604, 7833), (2611, 7812), (3038, 6714), (3357, 6076), (3906, 5222), (4476, 4557)]