19678672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2557}}^1$

素因数の和:2615

約数の個数: 40

約数和(自身を含む): 42186536

約数和(自身を除く): 22507864

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2557, 3848, 5114, 7696, 10228, 20456, 33241, 40912, 66482, 94609, 132964, 189218, 265928, 378436, 531856, 756872, 1229917, 1513744, 2459834, 4919668, 9839336, 19678672]

約数ペア:

[(1, 19678672), (2, 9839336), (4, 4919668), (8, 2459834), (13, 1513744), (16, 1229917), (26, 756872), (37, 531856), (52, 378436), (74, 265928), (104, 189218), (148, 132964), (208, 94609), (296, 66482), (481, 40912), (592, 33241), (962, 20456), (1924, 10228), (2557, 7696), (3848, 5114)]