21640232

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1$

素因数の和:1337

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 20868568

約数列:

[1, 2, 4, 8, 31, 62, 71, 124, 142, 248, 284, 568, 1229, 2201, 2458, 4402, 4916, 8804, 9832, 17608, 38099, 76198, 87259, 152396, 174518, 304792, 349036, 698072, 2705029, 5410058, 10820116, 21640232]

約数ペア:

[(1, 21640232), (2, 10820116), (4, 5410058), (8, 2705029), (31, 698072), (62, 349036), (71, 304792), (124, 174518), (142, 152396), (248, 87259), (284, 76198), (568, 38099), (1229, 17608), (2201, 9832), (2458, 8804), (4402, 4916)]