19489449

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 30818304

約数和(自身を除く): 11328855

約数列:

[1, 3, 7, 21, 43, 113, 129, 191, 301, 339, 573, 791, 903, 1337, 2373, 4011, 4859, 8213, 14577, 21583, 24639, 34013, 57491, 64749, 102039, 151081, 172473, 453243, 928069, 2784207, 6496483, 19489449]

約数ペア:

[(1, 19489449), (3, 6496483), (7, 2784207), (21, 928069), (43, 453243), (113, 172473), (129, 151081), (191, 102039), (301, 64749), (339, 57491), (573, 34013), (791, 24639), (903, 21583), (1337, 14577), (2373, 8213), (4011, 4859)]