20318085

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 37425024

約数和(自身を除く): 17106939

約数列:

[1, 3, 5, 9, 15, 23, 45, 67, 69, 115, 201, 207, 293, 335, 345, 603, 879, 1005, 1035, 1465, 1541, 2637, 3015, 4395, 4623, 6739, 7705, 13185, 13869, 19631, 20217, 23115, 33695, 58893, 60651, 69345, 98155, 101085, 176679, 294465, 303255, 451513, 883395, 1354539, 2257565, 4063617, 6772695, 20318085]

約数ペア:

[(1, 20318085), (3, 6772695), (5, 4063617), (9, 2257565), (15, 1354539), (23, 883395), (45, 451513), (67, 303255), (69, 294465), (115, 176679), (201, 101085), (207, 98155), (293, 69345), (335, 60651), (345, 58893), (603, 33695), (879, 23115), (1005, 20217), (1035, 19631), (1465, 13869), (1541, 13185), (2637, 7705), (3015, 6739), (4395, 4623)]