19966648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1699}}^1$

素因数の和:1831

約数の個数: 32

約数和(自身を含む): 40698000

約数和(自身を除く): 20731352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 226, 452, 904, 1469, 1699, 2938, 3398, 5876, 6796, 11752, 13592, 22087, 44174, 88348, 176696, 191987, 383974, 767948, 1535896, 2495831, 4991662, 9983324, 19966648]

約数ペア:

[(1, 19966648), (2, 9983324), (4, 4991662), (8, 2495831), (13, 1535896), (26, 767948), (52, 383974), (104, 191987), (113, 176696), (226, 88348), (452, 44174), (904, 22087), (1469, 13592), (1699, 11752), (2938, 6796), (3398, 5876)]