1998579213

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 2990183040

約数和(自身を除く): 991603827

約数列:

[1, 3, 9, 71, 101, 173, 179, 213, 303, 519, 537, 639, 909, 1557, 1611, 7171, 12283, 12709, 17473, 18079, 21513, 30967, 36849, 38127, 52419, 54237, 64539, 92901, 110547, 114381, 157257, 162711, 278703, 1240583, 1283609, 2198657, 3127667, 3721749, 3850827, 6595971, 9383001, 11165247, 11552481, 19787913, 28149003, 222064357, 666193071, 1998579213]

約数ペア:

[(1, 1998579213), (3, 666193071), (9, 222064357), (71, 28149003), (101, 19787913), (173, 11552481), (179, 11165247), (213, 9383001), (303, 6595971), (519, 3850827), (537, 3721749), (639, 3127667), (909, 2198657), (1557, 1283609), (1611, 1240583), (7171, 278703), (12283, 162711), (12709, 157257), (17473, 114381), (18079, 110547), (21513, 92901), (30967, 64539), (36849, 54237), (38127, 52419)]