21600025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 28283904

約数和(自身を除く): 6683879

約数列:

[1, 5, 25, 31, 47, 155, 235, 593, 775, 1175, 1457, 2965, 7285, 14825, 18383, 27871, 36425, 91915, 139355, 459575, 696775, 864001, 4320005, 21600025]

約数ペア:

[(1, 21600025), (5, 4320005), (25, 864001), (31, 696775), (47, 459575), (155, 139355), (235, 91915), (593, 36425), (775, 27871), (1175, 18383), (1457, 14825), (2965, 7285)]