21857329585

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1\times {\mathrm{1657}}^1$

素因数の和:2282

約数の個数: 64

約数和(自身を含む): 32970696192

約数和(自身を除く): 11113366607

約数列:

[1, 5, 7, 13, 35, 53, 65, 91, 265, 371, 455, 547, 689, 1657, 1855, 2735, 3445, 3829, 4823, 7111, 8285, 11599, 19145, 21541, 24115, 28991, 35555, 49777, 57995, 87821, 107705, 144955, 150787, 202937, 248885, 376883, 439105, 614747, 753935, 906379, 1014685, 1141673, 1884415, 2638181, 3073735, 4531895, 5708365, 6344653, 7991711, 11782927, 13190905, 31723265, 39958555, 48038087, 58914635, 82480489, 240190435, 336266609, 412402445, 624495131, 1681333045, 3122475655, 4371465917, 21857329585]

約数ペア:

[(1, 21857329585), (5, 4371465917), (7, 3122475655), (13, 1681333045), (35, 624495131), (53, 412402445), (65, 336266609), (91, 240190435), (265, 82480489), (371, 58914635), (455, 48038087), (547, 39958555), (689, 31723265), (1657, 13190905), (1855, 11782927), (2735, 7991711), (3445, 6344653), (3829, 5708365), (4823, 4531895), (7111, 3073735), (8285, 2638181), (11599, 1884415), (19145, 1141673), (21541, 1014685), (24115, 906379), (28991, 753935), (35555, 614747), (49777, 439105), (57995, 376883), (87821, 248885), (107705, 202937), (144955, 150787)]