18982712

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5557}}^1$

素因数の和:5631

約数の個数: 32

約数和(自身を含む): 41351520

約数和(自身を除く): 22368808

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 5557, 11114, 22228, 38899, 44456, 77798, 155596, 311192, 338977, 677954, 1355908, 2372839, 2711816, 4745678, 9491356, 18982712]

約数ペア:

[(1, 18982712), (2, 9491356), (4, 4745678), (7, 2711816), (8, 2372839), (14, 1355908), (28, 677954), (56, 338977), (61, 311192), (122, 155596), (244, 77798), (427, 44456), (488, 38899), (854, 22228), (1708, 11114), (3416, 5557)]