998331383

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{367}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 1221642240

約数和(自身を除く): 223310857

約数列:

[1, 7, 19, 113, 133, 181, 367, 791, 1267, 2147, 2569, 3439, 6973, 15029, 20453, 24073, 41471, 48811, 66427, 143171, 290297, 388607, 464989, 787949, 1262113, 2720249, 5515643, 7506251, 8834791, 52543757, 142618769, 998331383]

約数ペア:

[(1, 998331383), (7, 142618769), (19, 52543757), (113, 8834791), (133, 7506251), (181, 5515643), (367, 2720249), (791, 1262113), (1267, 787949), (2147, 464989), (2569, 388607), (3439, 290297), (6973, 143171), (15029, 66427), (20453, 48811), (24073, 41471)]