20121019898

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{311153}}^1$

素因数の和:311342

約数の個数: 32

約数和(自身を含む): 35844940800

約数和(自身を除く): 15723920902

約数列:

[1, 2, 7, 14, 31, 62, 149, 217, 298, 434, 1043, 2086, 4619, 9238, 32333, 64666, 311153, 622306, 2178071, 4356142, 9645743, 19291486, 46361797, 67520201, 92723594, 135040402, 324532579, 649065158, 1437215707, 2874431414, 10060509949, 20121019898]

約数ペア:

[(1, 20121019898), (2, 10060509949), (7, 2874431414), (14, 1437215707), (31, 649065158), (62, 324532579), (149, 135040402), (217, 92723594), (298, 67520201), (434, 46361797), (1043, 19291486), (2086, 9645743), (4619, 4356142), (9238, 2178071), (32333, 622306), (64666, 311153)]