21048454908

素因数分解:

$2^2\times 3^6\times {\mathrm{13}}^1\times {\mathrm{555251}}^1$

素因数の和:555286

約数の個数: 84

約数和(自身を含む): 59475262728

約数和(自身を除く): 38426807820

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 729, 972, 1053, 1404, 1458, 2106, 2916, 3159, 4212, 6318, 9477, 12636, 18954, 37908, 555251, 1110502, 1665753, 2221004, 3331506, 4997259, 6663012, 7218263, 9994518, 14436526, 14991777, 19989036, 21654789, 28873052, 29983554, 43309578, 44975331, 59967108, 64964367, 86619156, 89950662, 129928734, 134925993, 179901324, 194893101, 259857468, 269851986, 389786202, 404777979, 539703972, 584679303, 779572404, 809555958, 1169358606, 1619111916, 1754037909, 2338717212, 3508075818, 5262113727, 7016151636, 10524227454, 21048454908]

約数ペア:

[(1, 21048454908), (2, 10524227454), (3, 7016151636), (4, 5262113727), (6, 3508075818), (9, 2338717212), (12, 1754037909), (13, 1619111916), (18, 1169358606), (26, 809555958), (27, 779572404), (36, 584679303), (39, 539703972), (52, 404777979), (54, 389786202), (78, 269851986), (81, 259857468), (108, 194893101), (117, 179901324), (156, 134925993), (162, 129928734), (234, 89950662), (243, 86619156), (324, 64964367), (351, 59967108), (468, 44975331), (486, 43309578), (702, 29983554), (729, 28873052), (972, 21654789), (1053, 19989036), (1404, 14991777), (1458, 14436526), (2106, 9994518), (2916, 7218263), (3159, 6663012), (4212, 4997259), (6318, 3331506), (9477, 2221004), (12636, 1665753), (18954, 1110502), (37908, 555251)]