78763779

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 119508480

約数和(自身を除く): 40744701

約数列:

[1, 3, 9, 27, 71, 181, 213, 227, 543, 639, 681, 1629, 1917, 2043, 4887, 6129, 12851, 16117, 38553, 41087, 48351, 115659, 123261, 145053, 346977, 369783, 435159, 1109349, 2917177, 8751531, 26254593, 78763779]

約数ペア:

[(1, 78763779), (3, 26254593), (9, 8751531), (27, 2917177), (71, 1109349), (181, 435159), (213, 369783), (227, 346977), (543, 145053), (639, 123261), (681, 115659), (1629, 48351), (1917, 41087), (2043, 38553), (4887, 16117), (6129, 12851)]