20082007

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 23461200

約数和(自身を除く): 3379193

約数列:

[1, 11, 29, 59, 97, 121, 319, 649, 1067, 1711, 2813, 3509, 5723, 7139, 11737, 18821, 30943, 62953, 165967, 207031, 340373, 692483, 1825637, 20082007]

約数ペア:

[(1, 20082007), (11, 1825637), (29, 692483), (59, 340373), (97, 207031), (121, 165967), (319, 62953), (649, 30943), (1067, 18821), (1711, 11737), (2813, 7139), (3509, 5723)]