28074893

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{1063}}^1$

素因数の和:1102

約数の個数: 20

約数和(自身を含む): 35763168

約数和(自身を除く): 7688275

約数列:

[1, 7, 11, 49, 77, 343, 539, 1063, 2401, 3773, 7441, 11693, 26411, 52087, 81851, 364609, 572957, 2552263, 4010699, 28074893]

約数ペア:

[(1, 28074893), (7, 4010699), (11, 2552263), (49, 572957), (77, 364609), (343, 81851), (539, 52087), (1063, 26411), (2401, 11693), (3773, 7441)]