21128274

素因数分解:

$2^1\times 3^2\times {\mathrm{211}}^1\times {\mathrm{5563}}^1$

素因数の和:5782

約数の個数: 24

約数和(自身を含む): 46003152

約数和(自身を除く): 24874878

約数列:

[1, 2, 3, 6, 9, 18, 211, 422, 633, 1266, 1899, 3798, 5563, 11126, 16689, 33378, 50067, 100134, 1173793, 2347586, 3521379, 7042758, 10564137, 21128274]

約数ペア:

[(1, 21128274), (2, 10564137), (3, 7042758), (6, 3521379), (9, 2347586), (18, 1173793), (211, 100134), (422, 50067), (633, 33378), (1266, 16689), (1899, 11126), (3798, 5563)]