21831495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3923}}^1$

素因数の和:3991

約数の個数: 32

約数和(自身を含む): 40684032

約数和(自身を除く): 18852537

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3923, 5565, 11769, 19615, 27461, 58845, 82383, 137305, 207919, 411915, 623757, 1039595, 1455433, 3118785, 4366299, 7277165, 21831495]

約数ペア:

[(1, 21831495), (3, 7277165), (5, 4366299), (7, 3118785), (15, 1455433), (21, 1039595), (35, 623757), (53, 411915), (105, 207919), (159, 137305), (265, 82383), (371, 58845), (795, 27461), (1113, 19615), (1855, 11769), (3923, 5565)]