19113515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 23811840

約数和(自身を除く): 4698325

約数列:

[1, 5, 31, 155, 317, 389, 1585, 1945, 9827, 12059, 49135, 60295, 123313, 616565, 3822703, 19113515]

約数ペア:

[(1, 19113515), (5, 3822703), (31, 616565), (155, 123313), (317, 60295), (389, 49135), (1585, 12059), (1945, 9827)]