19904761

素因数分解:

${\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:336

約数の個数: 16

約数和(自身を含む): 21600000

約数和(自身を除く): 1695239

約数列:

[1, 19, 79, 89, 149, 1501, 1691, 2831, 7031, 11771, 13261, 133589, 223649, 251959, 1047619, 19904761]

約数ペア:

[(1, 19904761), (19, 1047619), (79, 251959), (89, 223649), (149, 133589), (1501, 13261), (1691, 11771), (2831, 7031)]