21905095504

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{607}}^1\times {\mathrm{2347}}^1$

素因数の和:3024

約数の個数: 60

約数和(自身を含む): 43945318272

約数和(自身を除く): 22040222768

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 607, 961, 1214, 1922, 2347, 2428, 3844, 4694, 4856, 7688, 9388, 9712, 15376, 18776, 18817, 37552, 37634, 72757, 75268, 145514, 150536, 291028, 301072, 582056, 583327, 1164112, 1166654, 1424629, 2255467, 2333308, 2849258, 4510934, 4666616, 5698516, 9021868, 9333232, 11397032, 18043736, 22794064, 36087472, 44163499, 88326998, 176653996, 353307992, 706615984, 1369068469, 2738136938, 5476273876, 10952547752, 21905095504]

約数ペア:

[(1, 21905095504), (2, 10952547752), (4, 5476273876), (8, 2738136938), (16, 1369068469), (31, 706615984), (62, 353307992), (124, 176653996), (248, 88326998), (496, 44163499), (607, 36087472), (961, 22794064), (1214, 18043736), (1922, 11397032), (2347, 9333232), (2428, 9021868), (3844, 5698516), (4694, 4666616), (4856, 4510934), (7688, 2849258), (9388, 2333308), (9712, 2255467), (15376, 1424629), (18776, 1166654), (18817, 1164112), (37552, 583327), (37634, 582056), (72757, 301072), (75268, 291028), (145514, 150536)]