21356916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254249}}^1$

素因数の和:254263

約数の個数: 24

約数和(自身を含む): 56952000

約数和(自身を除く): 35595084

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254249, 508498, 762747, 1016996, 1525494, 1779743, 3050988, 3559486, 5339229, 7118972, 10678458, 21356916]

約数ペア:

[(1, 21356916), (2, 10678458), (3, 7118972), (4, 5339229), (6, 3559486), (7, 3050988), (12, 1779743), (14, 1525494), (21, 1016996), (28, 762747), (42, 508498), (84, 254249)]