21372606

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 51436800

約数和(自身を除く): 30064194

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 37, 38, 54, 57, 74, 111, 114, 171, 222, 333, 342, 513, 563, 666, 703, 999, 1026, 1126, 1406, 1689, 1998, 2109, 3378, 4218, 5067, 6327, 10134, 10697, 12654, 15201, 18981, 20831, 21394, 30402, 32091, 37962, 41662, 62493, 64182, 96273, 124986, 187479, 192546, 288819, 374958, 395789, 562437, 577638, 791578, 1124874, 1187367, 2374734, 3562101, 7124202, 10686303, 21372606]

約数ペア:

[(1, 21372606), (2, 10686303), (3, 7124202), (6, 3562101), (9, 2374734), (18, 1187367), (19, 1124874), (27, 791578), (37, 577638), (38, 562437), (54, 395789), (57, 374958), (74, 288819), (111, 192546), (114, 187479), (171, 124986), (222, 96273), (333, 64182), (342, 62493), (513, 41662), (563, 37962), (666, 32091), (703, 30402), (999, 21394), (1026, 20831), (1126, 18981), (1406, 15201), (1689, 12654), (1998, 10697), (2109, 10134), (3378, 6327), (4218, 5067)]