19964727

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 29628144

約数和(自身を除く): 9663417

約数列:

[1, 3, 9, 67, 113, 201, 293, 339, 603, 879, 1017, 2637, 7571, 19631, 22713, 33109, 58893, 68139, 99327, 176679, 297981, 2218303, 6654909, 19964727]

約数ペア:

[(1, 19964727), (3, 6654909), (9, 2218303), (67, 297981), (113, 176679), (201, 99327), (293, 68139), (339, 58893), (603, 33109), (879, 22713), (1017, 19631), (2637, 7571)]