20189917

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 22861440

約数和(自身を除く): 2671523

約数列:

[1, 11, 41, 89, 451, 503, 979, 3649, 5533, 20623, 40139, 44767, 226853, 492437, 1835447, 20189917]

約数ペア:

[(1, 20189917), (11, 1835447), (41, 492437), (89, 226853), (451, 44767), (503, 40139), (979, 20623), (3649, 5533)]