21805578

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 52099200

約数和(自身を除く): 30293622

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 53, 54, 57, 106, 114, 159, 171, 318, 342, 401, 477, 513, 802, 954, 1007, 1026, 1203, 1431, 2014, 2406, 2862, 3021, 3609, 6042, 7218, 7619, 9063, 10827, 15238, 18126, 21253, 21654, 22857, 27189, 42506, 45714, 54378, 63759, 68571, 127518, 137142, 191277, 205713, 382554, 403807, 411426, 573831, 807614, 1147662, 1211421, 2422842, 3634263, 7268526, 10902789, 21805578]

約数ペア:

[(1, 21805578), (2, 10902789), (3, 7268526), (6, 3634263), (9, 2422842), (18, 1211421), (19, 1147662), (27, 807614), (38, 573831), (53, 411426), (54, 403807), (57, 382554), (106, 205713), (114, 191277), (159, 137142), (171, 127518), (318, 68571), (342, 63759), (401, 54378), (477, 45714), (513, 42506), (802, 27189), (954, 22857), (1007, 21654), (1026, 21253), (1203, 18126), (1431, 15238), (2014, 10827), (2406, 9063), (2862, 7619), (3021, 7218), (3609, 6042)]