21793842

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{643}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 54250560

約数和(自身を除く): 32456718

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 269, 538, 643, 807, 1286, 1614, 1883, 1929, 2421, 3766, 3858, 4501, 4842, 5649, 5787, 9002, 11298, 11574, 13503, 16947, 27006, 33894, 40509, 81018, 172967, 345934, 518901, 1037802, 1210769, 1556703, 2421538, 3113406, 3632307, 7264614, 10896921, 21793842]

約数ペア:

[(1, 21793842), (2, 10896921), (3, 7264614), (6, 3632307), (7, 3113406), (9, 2421538), (14, 1556703), (18, 1210769), (21, 1037802), (42, 518901), (63, 345934), (126, 172967), (269, 81018), (538, 40509), (643, 33894), (807, 27006), (1286, 16947), (1614, 13503), (1883, 11574), (1929, 11298), (2421, 9002), (3766, 5787), (3858, 5649), (4501, 4842)]