21299681936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{957031}}^1$

素因数の和:957159

約数の個数: 40

約数和(自身を含む): 44858003904

約数和(自身を除く): 23558321968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 1391, 1712, 2782, 5564, 11128, 22256, 957031, 1914062, 3828124, 7656248, 12441403, 15312496, 24882806, 49765612, 99531224, 102402317, 199062448, 204804634, 409609268, 819218536, 1331230121, 1638437072, 2662460242, 5324920484, 10649840968, 21299681936]

約数ペア:

[(1, 21299681936), (2, 10649840968), (4, 5324920484), (8, 2662460242), (13, 1638437072), (16, 1331230121), (26, 819218536), (52, 409609268), (104, 204804634), (107, 199062448), (208, 102402317), (214, 99531224), (428, 49765612), (856, 24882806), (1391, 15312496), (1712, 12441403), (2782, 7656248), (5564, 3828124), (11128, 1914062), (22256, 957031)]