21061872

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11251}}^1$

素因数の和:11278

約数の個数: 60

約数和(自身を含む): 63483784

約数和(自身を除く): 42421912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11251, 22502, 33753, 45004, 67506, 90008, 101259, 135012, 146263, 180016, 202518, 270024, 292526, 405036, 438789, 540048, 585052, 810072, 877578, 1170104, 1316367, 1620144, 1755156, 2340208, 2632734, 3510312, 5265468, 7020624, 10530936, 21061872]

約数ペア:

[(1, 21061872), (2, 10530936), (3, 7020624), (4, 5265468), (6, 3510312), (8, 2632734), (9, 2340208), (12, 1755156), (13, 1620144), (16, 1316367), (18, 1170104), (24, 877578), (26, 810072), (36, 585052), (39, 540048), (48, 438789), (52, 405036), (72, 292526), (78, 270024), (104, 202518), (117, 180016), (144, 146263), (156, 135012), (208, 101259), (234, 90008), (312, 67506), (468, 45004), (624, 33753), (936, 22502), (1872, 11251)]