28364215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 37767744

約数和(自身を除く): 9403529

約数列:

[1, 5, 11, 55, 121, 173, 271, 605, 865, 1355, 1903, 2981, 9515, 14905, 20933, 32791, 46883, 104665, 163955, 234415, 515713, 2578565, 5672843, 28364215]

約数ペア:

[(1, 28364215), (5, 5672843), (11, 2578565), (55, 515713), (121, 234415), (173, 163955), (271, 104665), (605, 46883), (865, 32791), (1355, 20933), (1903, 14905), (2981, 9515)]