20577942

素因数分解:

$2^1\times 3^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 58752000

約数和(自身を除く): 38174058

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 49, 54, 63, 66, 77, 98, 99, 101, 126, 147, 154, 189, 198, 202, 231, 294, 297, 303, 343, 378, 441, 462, 539, 594, 606, 686, 693, 707, 882, 909, 1029, 1078, 1111, 1323, 1386, 1414, 1617, 1818, 2058, 2079, 2121, 2222, 2646, 2727, 3087, 3234, 3333, 3773, 4158, 4242, 4851, 4949, 5454, 6174, 6363, 6666, 7546, 7777, 9261, 9702, 9898, 9999, 11319, 12726, 14553, 14847, 15554, 18522, 19089, 19998, 22638, 23331, 29106, 29694, 29997, 33957, 34643, 38178, 44541, 46662, 54439, 59994, 67914, 69286, 69993, 89082, 101871, 103929, 108878, 133623, 139986, 163317, 203742, 207858, 209979, 267246, 311787, 326634, 381073, 419958, 489951, 623574, 762146, 935361, 979902, 1143219, 1469853, 1870722, 2286438, 2939706, 3429657, 6859314, 10288971, 20577942]

約数ペア:

[(1, 20577942), (2, 10288971), (3, 6859314), (6, 3429657), (7, 2939706), (9, 2286438), (11, 1870722), (14, 1469853), (18, 1143219), (21, 979902), (22, 935361), (27, 762146), (33, 623574), (42, 489951), (49, 419958), (54, 381073), (63, 326634), (66, 311787), (77, 267246), (98, 209979), (99, 207858), (101, 203742), (126, 163317), (147, 139986), (154, 133623), (189, 108878), (198, 103929), (202, 101871), (231, 89082), (294, 69993), (297, 69286), (303, 67914), (343, 59994), (378, 54439), (441, 46662), (462, 44541), (539, 38178), (594, 34643), (606, 33957), (686, 29997), (693, 29694), (707, 29106), (882, 23331), (909, 22638), (1029, 19998), (1078, 19089), (1111, 18522), (1323, 15554), (1386, 14847), (1414, 14553), (1617, 12726), (1818, 11319), (2058, 9999), (2079, 9898), (2121, 9702), (2222, 9261), (2646, 7777), (2727, 7546), (3087, 6666), (3234, 6363), (3333, 6174), (3773, 5454), (4158, 4949), (4242, 4851)]