20884785

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 35441280

約数和(自身を除く): 14556495

約数列:

[1, 3, 5, 15, 29, 41, 87, 123, 145, 205, 435, 615, 1171, 1189, 3513, 3567, 5855, 5945, 17565, 17835, 33959, 48011, 101877, 144033, 169795, 240055, 509385, 720165, 1392319, 4176957, 6961595, 20884785]

約数ペア:

[(1, 20884785), (3, 6961595), (5, 4176957), (15, 1392319), (29, 720165), (41, 509385), (87, 240055), (123, 169795), (145, 144033), (205, 101877), (435, 48011), (615, 33959), (1171, 17835), (1189, 17565), (3513, 5945), (3567, 5855)]