821047215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139991}}^1$

素因数の和:140039

約数の個数: 32

約数和(自身を含む): 1451437056

約数和(自身を除く): 630389841

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 5865, 139991, 419973, 699955, 2099865, 2379847, 3219793, 7139541, 9659379, 11899235, 16098965, 35697705, 48296895, 54736481, 164209443, 273682405, 821047215]

約数ペア:

[(1, 821047215), (3, 273682405), (5, 164209443), (15, 54736481), (17, 48296895), (23, 35697705), (51, 16098965), (69, 11899235), (85, 9659379), (115, 7139541), (255, 3219793), (345, 2379847), (391, 2099865), (1173, 699955), (1955, 419973), (5865, 139991)]