20478996

素因数分解:

$2^2\times 3^2\times {\mathrm{619}}^1\times {\mathrm{919}}^1$

素因数の和:1548

約数の個数: 36

約数和(自身を含む): 51906400

約数和(自身を除く): 31427404

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 619, 919, 1238, 1838, 1857, 2476, 2757, 3676, 3714, 5514, 5571, 7428, 8271, 11028, 11142, 16542, 22284, 33084, 568861, 1137722, 1706583, 2275444, 3413166, 5119749, 6826332, 10239498, 20478996]

約数ペア:

[(1, 20478996), (2, 10239498), (3, 6826332), (4, 5119749), (6, 3413166), (9, 2275444), (12, 1706583), (18, 1137722), (36, 568861), (619, 33084), (919, 22284), (1238, 16542), (1838, 11142), (1857, 11028), (2476, 8271), (2757, 7428), (3676, 5571), (3714, 5514)]