856551891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{1607}}^1$

素因数の和:1875

約数の個数: 32

約数和(自身を含む): 1253468160

約数和(自身を除く): 396916269

約数列:

[1, 3, 13, 39, 79, 173, 237, 519, 1027, 1607, 2249, 3081, 4821, 6747, 13667, 20891, 41001, 62673, 126953, 177671, 278011, 380859, 533013, 834033, 1650389, 3614143, 4951167, 10842429, 21962869, 65888607, 285517297, 856551891]

約数ペア:

[(1, 856551891), (3, 285517297), (13, 65888607), (39, 21962869), (79, 10842429), (173, 4951167), (237, 3614143), (519, 1650389), (1027, 834033), (1607, 533013), (2249, 380859), (3081, 278011), (4821, 177671), (6747, 126953), (13667, 62673), (20891, 41001)]