20218588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{773}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 38229408

約数和(自身を除く): 18010820

約数列:

[1, 2, 4, 13, 26, 52, 503, 773, 1006, 1546, 2012, 3092, 6539, 10049, 13078, 20098, 26156, 40196, 388819, 777638, 1555276, 5054647, 10109294, 20218588]

約数ペア:

[(1, 20218588), (2, 10109294), (4, 5054647), (13, 1555276), (26, 777638), (52, 388819), (503, 40196), (773, 26156), (1006, 20098), (1546, 13078), (2012, 10049), (3092, 6539)]