21447990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{26479}}^1$

素因数の和:26498

約数の個数: 40

約数和(自身を含む): 57673440

約数和(自身を除く): 36225450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 26479, 52958, 79437, 132395, 158874, 238311, 264790, 397185, 476622, 714933, 794370, 1191555, 1429866, 2144799, 2383110, 3574665, 4289598, 7149330, 10723995, 21447990]

約数ペア:

[(1, 21447990), (2, 10723995), (3, 7149330), (5, 4289598), (6, 3574665), (9, 2383110), (10, 2144799), (15, 1429866), (18, 1191555), (27, 794370), (30, 714933), (45, 476622), (54, 397185), (81, 264790), (90, 238311), (135, 158874), (162, 132395), (270, 79437), (405, 52958), (810, 26479)]