20909779

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3607}}^1$

素因数の和:3666

約数の個数: 16

約数和(自身を含む): 24938496

約数和(自身を除く): 4028717

約数列:

[1, 11, 17, 31, 187, 341, 527, 3607, 5797, 39677, 61319, 111817, 674509, 1229987, 1900889, 20909779]

約数ペア:

[(1, 20909779), (11, 1900889), (17, 1229987), (31, 674509), (187, 111817), (341, 61319), (527, 39677), (3607, 5797)]