18306743

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1047

約数の個数: 24

約数和(自身を含む): 23748480

約数和(自身を除く): 5441737

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 991, 1421, 2639, 6937, 12883, 18473, 28739, 48559, 90181, 201173, 373607, 631267, 1408211, 2615249, 18306743]

約数ペア:

[(1, 18306743), (7, 2615249), (13, 1408211), (29, 631267), (49, 373607), (91, 201173), (203, 90181), (377, 48559), (637, 28739), (991, 18473), (1421, 12883), (2639, 6937)]