20815138

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{4229}}^1$

素因数の和:4361

約数の個数: 16

約数和(自身を含む): 32892480

約数和(自身を除く): 12077342

約数列:

[1, 2, 23, 46, 107, 214, 2461, 4229, 4922, 8458, 97267, 194534, 452503, 905006, 10407569, 20815138]

約数ペア:

[(1, 20815138), (2, 10407569), (23, 905006), (46, 452503), (107, 194534), (214, 97267), (2461, 8458), (4229, 4922)]