21529179

素因数分解:

$3^3\times 7^2\times {\mathrm{16273}}^1$

素因数の和:16296

約数の個数: 24

約数和(自身を含む): 37104720

約数和(自身を除く): 15575541

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16273, 48819, 113911, 146457, 341733, 439371, 797377, 1025199, 2392131, 3075597, 7176393, 21529179]

約数ペア:

[(1, 21529179), (3, 7176393), (7, 3075597), (9, 2392131), (21, 1025199), (27, 797377), (49, 439371), (63, 341733), (147, 146457), (189, 113911), (441, 48819), (1323, 16273)]