20174751

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13109}}^1$

素因数の和:13140

約数の個数: 20

約数和(自身を含む): 31726200

約数和(自身を除く): 11551449

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13109, 39327, 117981, 249071, 353943, 747213, 1061829, 2241639, 6724917, 20174751]

約数ペア:

[(1, 20174751), (3, 6724917), (9, 2241639), (19, 1061829), (27, 747213), (57, 353943), (81, 249071), (171, 117981), (513, 39327), (1539, 13109)]