21777496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 25396904

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 103, 104, 107, 152, 206, 214, 247, 412, 428, 494, 824, 856, 988, 1339, 1391, 1957, 1976, 2033, 2678, 2782, 3914, 4066, 5356, 5564, 7828, 8132, 10712, 11021, 11128, 15656, 16264, 22042, 25441, 26429, 44084, 50882, 52858, 88168, 101764, 105716, 143273, 203528, 209399, 211432, 286546, 418798, 573092, 837596, 1146184, 1675192, 2722187, 5444374, 10888748, 21777496]

約数ペア:

[(1, 21777496), (2, 10888748), (4, 5444374), (8, 2722187), (13, 1675192), (19, 1146184), (26, 837596), (38, 573092), (52, 418798), (76, 286546), (103, 211432), (104, 209399), (107, 203528), (152, 143273), (206, 105716), (214, 101764), (247, 88168), (412, 52858), (428, 50882), (494, 44084), (824, 26429), (856, 25441), (988, 22042), (1339, 16264), (1391, 15656), (1957, 11128), (1976, 11021), (2033, 10712), (2678, 8132), (2782, 7828), (3914, 5564), (4066, 5356)]