21432789

素因数分解:

$3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{751}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 36577280

約数和(自身を除く): 15144491

約数列:

[1, 3, 7, 9, 21, 27, 63, 151, 189, 453, 751, 1057, 1359, 2253, 3171, 4077, 5257, 6759, 9513, 15771, 20277, 28539, 47313, 113401, 141939, 340203, 793807, 1020609, 2381421, 3061827, 7144263, 21432789]

約数ペア:

[(1, 21432789), (3, 7144263), (7, 3061827), (9, 2381421), (21, 1020609), (27, 793807), (63, 340203), (151, 141939), (189, 113401), (453, 47313), (751, 28539), (1057, 20277), (1359, 15771), (2253, 9513), (3171, 6759), (4077, 5257)]