19997385

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{45971}}^1$

素因数の和:46008

約数の個数: 16

約数和(自身を含む): 33099840

約数和(自身を除く): 13102455

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 45971, 137913, 229855, 689565, 1333159, 3999477, 6665795, 19997385]

約数ペア:

[(1, 19997385), (3, 6665795), (5, 3999477), (15, 1333159), (29, 689565), (87, 229855), (145, 137913), (435, 45971)]