21050607

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 31553280

約数和(自身を除く): 10502673

約数列:

[1, 3, 17, 29, 43, 51, 87, 129, 331, 493, 731, 993, 1247, 1479, 2193, 3741, 5627, 9599, 14233, 16881, 21199, 28797, 42699, 63597, 163183, 241961, 412757, 489549, 725883, 1238271, 7016869, 21050607]

約数ペア:

[(1, 21050607), (3, 7016869), (17, 1238271), (29, 725883), (43, 489549), (51, 412757), (87, 241961), (129, 163183), (331, 63597), (493, 42699), (731, 28797), (993, 21199), (1247, 16881), (1479, 14233), (2193, 9599), (3741, 5627)]