19181994

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7933}}^1$

素因数の和:7982

約数の個数: 32

約数和(自身を含む): 42653184

約数和(自身を除く): 23471190

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 7933, 15866, 23799, 47598, 103129, 206258, 245923, 309387, 491846, 618774, 737769, 1475538, 3196999, 6393998, 9590997, 19181994]

約数ペア:

[(1, 19181994), (2, 9590997), (3, 6393998), (6, 3196999), (13, 1475538), (26, 737769), (31, 618774), (39, 491846), (62, 309387), (78, 245923), (93, 206258), (186, 103129), (403, 47598), (806, 23799), (1209, 15866), (2418, 7933)]