19438515

素因数分解:

$3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1321}}^1$

素因数の和:1444

約数の個数: 32

約数和(自身を含む): 34900800

約数和(自身を除く): 15462285

約数列:

[1, 3, 5, 9, 15, 27, 45, 109, 135, 327, 545, 981, 1321, 1635, 2943, 3963, 4905, 6605, 11889, 14715, 19815, 35667, 59445, 143989, 178335, 431967, 719945, 1295901, 2159835, 3887703, 6479505, 19438515]

約数ペア:

[(1, 19438515), (3, 6479505), (5, 3887703), (9, 2159835), (15, 1295901), (27, 719945), (45, 431967), (109, 178335), (135, 143989), (327, 59445), (545, 35667), (981, 19815), (1321, 14715), (1635, 11889), (2943, 6605), (3963, 4905)]