21001204

素因数分解:

$2^2\times 7^3\times {\mathrm{15307}}^1$

素因数の和:15332

約数の個数: 24

約数和(自身を含む): 42862400

約数和(自身を除く): 21861196

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15307, 30614, 61228, 107149, 214298, 428596, 750043, 1500086, 3000172, 5250301, 10500602, 21001204]

約数ペア:

[(1, 21001204), (2, 10500602), (4, 5250301), (7, 3000172), (14, 1500086), (28, 750043), (49, 428596), (98, 214298), (196, 107149), (343, 61228), (686, 30614), (1372, 15307)]