20474838

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 46309536

約数和(自身を除く): 25834698

約数列:

[1, 2, 3, 6, 9, 18, 37, 71, 74, 111, 142, 213, 222, 333, 426, 433, 639, 666, 866, 1278, 1299, 2598, 2627, 3897, 5254, 7794, 7881, 15762, 16021, 23643, 30743, 32042, 47286, 48063, 61486, 92229, 96126, 144189, 184458, 276687, 288378, 553374, 1137491, 2274982, 3412473, 6824946, 10237419, 20474838]

約数ペア:

[(1, 20474838), (2, 10237419), (3, 6824946), (6, 3412473), (9, 2274982), (18, 1137491), (37, 553374), (71, 288378), (74, 276687), (111, 184458), (142, 144189), (213, 96126), (222, 92229), (333, 61486), (426, 48063), (433, 47286), (639, 32042), (666, 30743), (866, 23643), (1278, 16021), (1299, 15762), (2598, 7881), (2627, 7794), (3897, 5254)]