20196869

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:186

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 6241531

約数列:

[1, 7, 11, 49, 53, 77, 101, 343, 371, 539, 583, 707, 1111, 2597, 3773, 4081, 4949, 5353, 7777, 18179, 28567, 34643, 37471, 54439, 58883, 199969, 262297, 381073, 412181, 1836079, 2885267, 20196869]

約数ペア:

[(1, 20196869), (7, 2885267), (11, 1836079), (49, 412181), (53, 381073), (77, 262297), (101, 199969), (343, 58883), (371, 54439), (539, 37471), (583, 34643), (707, 28567), (1111, 18179), (2597, 7777), (3773, 5353), (4081, 4949)]