21855168

素因数分解:

$2^6\times 3^2\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2034

約数の個数: 84

約数和(自身を含む): 65973960

約数和(自身を除く): 44118792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 32, 36, 38, 48, 57, 64, 72, 76, 96, 114, 144, 152, 171, 192, 228, 288, 304, 342, 456, 576, 608, 684, 912, 1216, 1368, 1824, 1997, 2736, 3648, 3994, 5472, 5991, 7988, 10944, 11982, 15976, 17973, 23964, 31952, 35946, 37943, 47928, 63904, 71892, 75886, 95856, 113829, 127808, 143784, 151772, 191712, 227658, 287568, 303544, 341487, 383424, 455316, 575136, 607088, 682974, 910632, 1150272, 1214176, 1365948, 1821264, 2428352, 2731896, 3642528, 5463792, 7285056, 10927584, 21855168]

約数ペア:

[(1, 21855168), (2, 10927584), (3, 7285056), (4, 5463792), (6, 3642528), (8, 2731896), (9, 2428352), (12, 1821264), (16, 1365948), (18, 1214176), (19, 1150272), (24, 910632), (32, 682974), (36, 607088), (38, 575136), (48, 455316), (57, 383424), (64, 341487), (72, 303544), (76, 287568), (96, 227658), (114, 191712), (144, 151772), (152, 143784), (171, 127808), (192, 113829), (228, 95856), (288, 75886), (304, 71892), (342, 63904), (456, 47928), (576, 37943), (608, 35946), (684, 31952), (912, 23964), (1216, 17973), (1368, 15976), (1824, 11982), (1997, 10944), (2736, 7988), (3648, 5991), (3994, 5472)]