21081384

素因数分解:

$2^3\times 3^4\times {\mathrm{32533}}^1$

素因数の和:32551

約数の個数: 40

約数和(自身を含む): 59049210

約数和(自身を除く): 37967826

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 32533, 65066, 97599, 130132, 195198, 260264, 292797, 390396, 585594, 780792, 878391, 1171188, 1756782, 2342376, 2635173, 3513564, 5270346, 7027128, 10540692, 21081384]

約数ペア:

[(1, 21081384), (2, 10540692), (3, 7027128), (4, 5270346), (6, 3513564), (8, 2635173), (9, 2342376), (12, 1756782), (18, 1171188), (24, 878391), (27, 780792), (36, 585594), (54, 390396), (72, 292797), (81, 260264), (108, 195198), (162, 130132), (216, 97599), (324, 65066), (648, 32533)]