19315219

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1831}}^1$

素因数の和:1986

約数の個数: 16

約数和(自身を含む): 24270336

約数和(自身を除く): 4955117

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1831, 10549, 12817, 20141, 140987, 250847, 1755929, 2759317, 19315219]

約数ペア:

[(1, 19315219), (7, 2759317), (11, 1755929), (77, 250847), (137, 140987), (959, 20141), (1507, 12817), (1831, 10549)]