21387332

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 41164032

約数和(自身を除く): 19776700

約数列:

[1, 2, 4, 23, 37, 46, 61, 74, 92, 103, 122, 148, 206, 244, 412, 851, 1403, 1702, 2257, 2369, 2806, 3404, 3811, 4514, 4738, 5612, 6283, 7622, 9028, 9476, 12566, 15244, 25132, 51911, 87653, 103822, 144509, 175306, 207644, 232471, 289018, 350612, 464942, 578036, 929884, 5346833, 10693666, 21387332]

約数ペア:

[(1, 21387332), (2, 10693666), (4, 5346833), (23, 929884), (37, 578036), (46, 464942), (61, 350612), (74, 289018), (92, 232471), (103, 207644), (122, 175306), (148, 144509), (206, 103822), (244, 87653), (412, 51911), (851, 25132), (1403, 15244), (1702, 12566), (2257, 9476), (2369, 9028), (2806, 7622), (3404, 6283), (3811, 5612), (4514, 4738)]