21167477506

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21295249}}^1$

素因数の和:21295329

約数の個数: 16

約数和(自身を含む): 36798192000

約数和(自身を除く): 15630714494

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21295249, 42590498, 149066743, 298133486, 1511962679, 3023925358, 10583738753, 21167477506]

約数ペア:

[(1, 21167477506), (2, 10583738753), (7, 3023925358), (14, 1511962679), (71, 298133486), (142, 149066743), (497, 42590498), (994, 21295249)]