19953104

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{673}}^1$

素因数の和:807

約数の個数: 40

約数和(自身を含む): 41370120

約数和(自身を除く): 21417016

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 109, 136, 218, 272, 436, 673, 872, 1346, 1744, 1853, 2692, 3706, 5384, 7412, 10768, 11441, 14824, 22882, 29648, 45764, 73357, 91528, 146714, 183056, 293428, 586856, 1173712, 1247069, 2494138, 4988276, 9976552, 19953104]

約数ペア:

[(1, 19953104), (2, 9976552), (4, 4988276), (8, 2494138), (16, 1247069), (17, 1173712), (34, 586856), (68, 293428), (109, 183056), (136, 146714), (218, 91528), (272, 73357), (436, 45764), (673, 29648), (872, 22882), (1346, 14824), (1744, 11441), (1853, 10768), (2692, 7412), (3706, 5384)]