21478422

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{511391}}^1$

素因数の和:511403

約数の個数: 16

約数和(自身を含む): 49093632

約数和(自身を除く): 27615210

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 511391, 1022782, 1534173, 3068346, 3579737, 7159474, 10739211, 21478422]

約数ペア:

[(1, 21478422), (2, 10739211), (3, 7159474), (6, 3579737), (7, 3068346), (14, 1534173), (21, 1022782), (42, 511391)]