21152364

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 51916032

約数和(自身を除く): 30763668

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 173, 276, 346, 443, 519, 692, 886, 1038, 1329, 1772, 2076, 2658, 3979, 5316, 7958, 10189, 11937, 15916, 20378, 23874, 30567, 40756, 47748, 61134, 76639, 122268, 153278, 229917, 306556, 459834, 919668, 1762697, 3525394, 5288091, 7050788, 10576182, 21152364]

約数ペア:

[(1, 21152364), (2, 10576182), (3, 7050788), (4, 5288091), (6, 3525394), (12, 1762697), (23, 919668), (46, 459834), (69, 306556), (92, 229917), (138, 153278), (173, 122268), (276, 76639), (346, 61134), (443, 47748), (519, 40756), (692, 30567), (886, 23874), (1038, 20378), (1329, 15916), (1772, 11937), (2076, 10189), (2658, 7958), (3979, 5316)]