19121415

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 12659961

約数列:

[1, 3, 5, 15, 37, 111, 131, 185, 263, 393, 555, 655, 789, 1315, 1965, 3945, 4847, 9731, 14541, 24235, 29193, 34453, 48655, 72705, 103359, 145965, 172265, 516795, 1274761, 3824283, 6373805, 19121415]

約数ペア:

[(1, 19121415), (3, 6373805), (5, 3824283), (15, 1274761), (37, 516795), (111, 172265), (131, 145965), (185, 103359), (263, 72705), (393, 48655), (555, 34453), (655, 29193), (789, 24235), (1315, 14541), (1965, 9731), (3945, 4847)]