21226086

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 96

約数和(自身を含む): 56197440

約数和(自身を除く): 34971354

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 37, 42, 58, 63, 74, 87, 111, 126, 157, 174, 203, 222, 259, 261, 314, 333, 406, 471, 518, 522, 609, 666, 777, 942, 1073, 1099, 1218, 1413, 1554, 1827, 2146, 2198, 2331, 2826, 3219, 3297, 3654, 4553, 4662, 5809, 6438, 6594, 7511, 9106, 9657, 9891, 11618, 13659, 15022, 17427, 19314, 19782, 22533, 27318, 31871, 34854, 40663, 40977, 45066, 52281, 63742, 67599, 81326, 81954, 95613, 104562, 121989, 135198, 168461, 191226, 243978, 286839, 336922, 365967, 505383, 573678, 731934, 1010766, 1179227, 1516149, 2358454, 3032298, 3537681, 7075362, 10613043, 21226086]

約数ペア:

[(1, 21226086), (2, 10613043), (3, 7075362), (6, 3537681), (7, 3032298), (9, 2358454), (14, 1516149), (18, 1179227), (21, 1010766), (29, 731934), (37, 573678), (42, 505383), (58, 365967), (63, 336922), (74, 286839), (87, 243978), (111, 191226), (126, 168461), (157, 135198), (174, 121989), (203, 104562), (222, 95613), (259, 81954), (261, 81326), (314, 67599), (333, 63742), (406, 52281), (471, 45066), (518, 40977), (522, 40663), (609, 34854), (666, 31871), (777, 27318), (942, 22533), (1073, 19782), (1099, 19314), (1218, 17427), (1413, 15022), (1554, 13659), (1827, 11618), (2146, 9891), (2198, 9657), (2331, 9106), (2826, 7511), (3219, 6594), (3297, 6438), (3654, 5809), (4553, 4662)]