19725468

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{523}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 52819200

約数和(自身を除く): 33093732

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 449, 523, 898, 1046, 1347, 1569, 1796, 2092, 2694, 3138, 3143, 3661, 5388, 6276, 6286, 7322, 9429, 10983, 12572, 14644, 18858, 21966, 37716, 43932, 234827, 469654, 704481, 939308, 1408962, 1643789, 2817924, 3287578, 4931367, 6575156, 9862734, 19725468]

約数ペア:

[(1, 19725468), (2, 9862734), (3, 6575156), (4, 4931367), (6, 3287578), (7, 2817924), (12, 1643789), (14, 1408962), (21, 939308), (28, 704481), (42, 469654), (84, 234827), (449, 43932), (523, 37716), (898, 21966), (1046, 18858), (1347, 14644), (1569, 12572), (1796, 10983), (2092, 9429), (2694, 7322), (3138, 6286), (3143, 6276), (3661, 5388)]