20649924

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2693}}^1$

素因数の和:2777

約数の個数: 48

約数和(自身を含む): 54311040

約数和(自身を除く): 33661116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2693, 3834, 5386, 7668, 8079, 10772, 16158, 24237, 32316, 48474, 72711, 96948, 145422, 191203, 290844, 382406, 573609, 764812, 1147218, 1720827, 2294436, 3441654, 5162481, 6883308, 10324962, 20649924]

約数ペア:

[(1, 20649924), (2, 10324962), (3, 6883308), (4, 5162481), (6, 3441654), (9, 2294436), (12, 1720827), (18, 1147218), (27, 764812), (36, 573609), (54, 382406), (71, 290844), (108, 191203), (142, 145422), (213, 96948), (284, 72711), (426, 48474), (639, 32316), (852, 24237), (1278, 16158), (1917, 10772), (2556, 8079), (2693, 7668), (3834, 5386)]