21535161508

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{552127}}^1$

素因数の和:552344

約数の個数: 36

約数和(自身を含む): 44059814400

約数和(自身を除く): 22524652892

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 796, 1393, 2786, 5572, 9751, 19502, 39004, 552127, 1104254, 2208508, 3864889, 7729778, 15459556, 27054223, 54108446, 108216892, 109873273, 219746546, 439493092, 769112911, 1538225822, 3076451644, 5383790377, 10767580754, 21535161508]

約数ペア:

[(1, 21535161508), (2, 10767580754), (4, 5383790377), (7, 3076451644), (14, 1538225822), (28, 769112911), (49, 439493092), (98, 219746546), (196, 109873273), (199, 108216892), (398, 54108446), (796, 27054223), (1393, 15459556), (2786, 7729778), (5572, 3864889), (9751, 2208508), (19502, 1104254), (39004, 552127)]