21384950

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{5153}}^1$

素因数の和:5248

約数の個数: 24

約数和(自身を含む): 40263048

約数和(自身を除く): 18878098

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 5153, 10306, 25765, 51530, 128825, 257650, 427699, 855398, 2138495, 4276990, 10692475, 21384950]

約数ペア:

[(1, 21384950), (2, 10692475), (5, 4276990), (10, 2138495), (25, 855398), (50, 427699), (83, 257650), (166, 128825), (415, 51530), (830, 25765), (2075, 10306), (4150, 5153)]