21286422

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20747}}^1$

素因数の和:20777

約数の個数: 32

約数和(自身を含む): 49795200

約数和(自身を除く): 28508778

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026, 20747, 41494, 62241, 124482, 186723, 373446, 394193, 560169, 788386, 1120338, 1182579, 2365158, 3547737, 7095474, 10643211, 21286422]

約数ペア:

[(1, 21286422), (2, 10643211), (3, 7095474), (6, 3547737), (9, 2365158), (18, 1182579), (19, 1120338), (27, 788386), (38, 560169), (54, 394193), (57, 373446), (114, 186723), (171, 124482), (342, 62241), (513, 41494), (1026, 20747)]