71316921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 109105920

約数和(自身を除く): 37788999

約数列:

[1, 3, 13, 17, 39, 51, 221, 263, 409, 663, 789, 1227, 3419, 4471, 5317, 6953, 10257, 13413, 15951, 20859, 58123, 90389, 107567, 174369, 271167, 322701, 1398371, 1828639, 4195113, 5485917, 23772307, 71316921]

約数ペア:

[(1, 71316921), (3, 23772307), (13, 5485917), (17, 4195113), (39, 1828639), (51, 1398371), (221, 322701), (263, 271167), (409, 174369), (663, 107567), (789, 90389), (1227, 58123), (3419, 20859), (4471, 15951), (5317, 13413), (6953, 10257)]