19894239

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{233}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 29568240

約数和(自身を除く): 9674001

約数列:

[1, 3, 9, 53, 159, 179, 233, 477, 537, 699, 1611, 2097, 9487, 12349, 28461, 37047, 41707, 85383, 111141, 125121, 375363, 2210471, 6631413, 19894239]

約数ペア:

[(1, 19894239), (3, 6631413), (9, 2210471), (53, 375363), (159, 125121), (179, 111141), (233, 85383), (477, 41707), (537, 37047), (699, 28461), (1611, 12349), (2097, 9487)]