19488861

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4357}}^1$

素因数の和:4441

約数の個数: 24

約数和(自身を含む): 32632704

約数和(自身を除く): 13143843

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4357, 4473, 13071, 30499, 39213, 91497, 274491, 309347, 928041, 2165429, 2784123, 6496287, 19488861]

約数ペア:

[(1, 19488861), (3, 6496287), (7, 2784123), (9, 2165429), (21, 928041), (63, 309347), (71, 274491), (213, 91497), (497, 39213), (639, 30499), (1491, 13071), (4357, 4473)]