18468737

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 22838760

約数和(自身を除く): 4370023

約数列:

[1, 7, 29, 41, 49, 203, 287, 317, 1189, 1421, 2009, 2219, 8323, 9193, 12997, 15533, 58261, 64351, 90979, 376913, 450457, 636853, 2638391, 18468737]

約数ペア:

[(1, 18468737), (7, 2638391), (29, 636853), (41, 450457), (49, 376913), (203, 90979), (287, 64351), (317, 58261), (1189, 15533), (1421, 12997), (2009, 9193), (2219, 8323)]