20123176821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{983}}^1\times {\mathrm{21391}}^1$

素因数の和:22417

約数の個数: 32

約数和(自身を含む): 30311608320

約数和(自身を除く): 10188431499

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 983, 2949, 10813, 21391, 28507, 32439, 64173, 85521, 235301, 313577, 620339, 705903, 940731, 1861017, 6823729, 20471187, 21027353, 63082059, 231300883, 609793237, 693902649, 1829379711, 6707725607, 20123176821]

約数ペア:

[(1, 20123176821), (3, 6707725607), (11, 1829379711), (29, 693902649), (33, 609793237), (87, 231300883), (319, 63082059), (957, 21027353), (983, 20471187), (2949, 6823729), (10813, 1861017), (21391, 940731), (28507, 705903), (32439, 620339), (64173, 313577), (85521, 235301)]