19880441

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 25589760

約数和(自身を除く): 5709319

約数列:

[1, 7, 19, 23, 67, 97, 133, 161, 437, 469, 679, 1273, 1541, 1843, 2231, 3059, 6499, 8911, 10787, 12901, 15617, 29279, 42389, 45493, 123481, 149477, 204953, 296723, 864367, 1046339, 2840063, 19880441]

約数ペア:

[(1, 19880441), (7, 2840063), (19, 1046339), (23, 864367), (67, 296723), (97, 204953), (133, 149477), (161, 123481), (437, 45493), (469, 42389), (679, 29279), (1273, 15617), (1541, 12901), (1843, 10787), (2231, 8911), (3059, 6499)]