19489535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 27202560

約数和(自身を除く): 7713025

約数列:

[1, 5, 13, 19, 43, 65, 95, 215, 247, 367, 559, 817, 1235, 1835, 2795, 4085, 4771, 6973, 10621, 15781, 23855, 34865, 53105, 78905, 90649, 205153, 299839, 453245, 1025765, 1499195, 3897907, 19489535]

約数ペア:

[(1, 19489535), (5, 3897907), (13, 1499195), (19, 1025765), (43, 453245), (65, 299839), (95, 205153), (215, 90649), (247, 78905), (367, 53105), (559, 34865), (817, 23855), (1235, 15781), (1835, 10621), (2795, 6973), (4085, 4771)]