18489788

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 33426624

約数和(自身を除く): 14936836

約数列:

[1, 2, 4, 37, 74, 148, 271, 461, 542, 922, 1084, 1844, 10027, 17057, 20054, 34114, 40108, 68228, 124931, 249862, 499724, 4622447, 9244894, 18489788]

約数ペア:

[(1, 18489788), (2, 9244894), (4, 4622447), (37, 499724), (74, 249862), (148, 124931), (271, 68228), (461, 40108), (542, 34114), (922, 20054), (1084, 17057), (1844, 10027)]