21856002

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{520381}}^1$

素因数の和:520393

約数の個数: 16

約数和(自身を含む): 49956672

約数和(自身を除く): 28100670

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 520381, 1040762, 1561143, 3122286, 3642667, 7285334, 10928001, 21856002]

約数ペア:

[(1, 21856002), (2, 10928001), (3, 7285334), (6, 3642667), (7, 3122286), (14, 1561143), (21, 1040762), (42, 520381)]