215845539

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 363121920

約数和(自身を除く): 147276381

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 179, 273, 537, 631, 637, 1253, 1893, 1911, 2327, 3759, 4417, 6981, 8203, 8771, 13251, 16289, 24609, 26313, 30919, 48867, 57421, 92757, 112949, 114023, 172263, 338847, 342069, 401947, 790643, 1205841, 1468337, 2371929, 4405011, 5534501, 10278359, 16603503, 30835077, 71948513, 215845539]

約数ペア:

[(1, 215845539), (3, 71948513), (7, 30835077), (13, 16603503), (21, 10278359), (39, 5534501), (49, 4405011), (91, 2371929), (147, 1468337), (179, 1205841), (273, 790643), (537, 401947), (631, 342069), (637, 338847), (1253, 172263), (1893, 114023), (1911, 112949), (2327, 92757), (3759, 57421), (4417, 48867), (6981, 30919), (8203, 26313), (8771, 24609), (13251, 16289)]