21255243

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 32194560

約数和(自身を除く): 10939317

約数列:

[1, 3, 19, 23, 31, 57, 69, 93, 437, 523, 589, 713, 1311, 1569, 1767, 2139, 9937, 12029, 13547, 16213, 29811, 36087, 40641, 48639, 228551, 308047, 372899, 685653, 924141, 1118697, 7085081, 21255243]

約数ペア:

[(1, 21255243), (3, 7085081), (19, 1118697), (23, 924141), (31, 685653), (57, 372899), (69, 308047), (93, 228551), (437, 48639), (523, 40641), (589, 36087), (713, 29811), (1311, 16213), (1569, 13547), (1767, 12029), (2139, 9937)]