21000908018

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{9623}}^1$

素因数の和:10042

約数の個数: 32

約数和(自身を含む): 32927938560

約数和(自身を除く): 11927030542

約数列:

[1, 2, 29, 58, 191, 197, 382, 394, 5539, 5713, 9623, 11078, 11426, 19246, 37627, 75254, 279067, 558134, 1091183, 1837993, 1895731, 2182366, 3675986, 3791462, 53301797, 54976199, 106603594, 109952398, 362084621, 724169242, 10500454009, 21000908018]

約数ペア:

[(1, 21000908018), (2, 10500454009), (29, 724169242), (58, 362084621), (191, 109952398), (197, 106603594), (382, 54976199), (394, 53301797), (5539, 3791462), (5713, 3675986), (9623, 2182366), (11078, 1895731), (11426, 1837993), (19246, 1091183), (37627, 558134), (75254, 279067)]