21490919992

素因数分解:

$2^3\times {\mathrm{823}}^1\times {\mathrm{911}}^1\times {\mathrm{3583}}^1$

素因数の和:5323

約数の個数: 32

約数和(自身を含む): 40399994880

約数和(自身を除く): 18909074888

約数列:

[1, 2, 4, 8, 823, 911, 1646, 1822, 3292, 3583, 3644, 6584, 7166, 7288, 14332, 28664, 749753, 1499506, 2948809, 2999012, 3264113, 5897618, 5998024, 6528226, 11795236, 13056452, 23590472, 26112904, 2686364999, 5372729998, 10745459996, 21490919992]

約数ペア:

[(1, 21490919992), (2, 10745459996), (4, 5372729998), (8, 2686364999), (823, 26112904), (911, 23590472), (1646, 13056452), (1822, 11795236), (3292, 6528226), (3583, 5998024), (3644, 5897618), (6584, 3264113), (7166, 2999012), (7288, 2948809), (14332, 1499506), (28664, 749753)]