21971300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16901}}^1$

素因数の和:16928

約数の個数: 36

約数和(自身を含む): 51348276

約数和(自身を除く): 29376976

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16901, 33802, 67604, 84505, 169010, 219713, 338020, 422525, 439426, 845050, 878852, 1098565, 1690100, 2197130, 4394260, 5492825, 10985650, 21971300]

約数ペア:

[(1, 21971300), (2, 10985650), (4, 5492825), (5, 4394260), (10, 2197130), (13, 1690100), (20, 1098565), (25, 878852), (26, 845050), (50, 439426), (52, 422525), (65, 338020), (100, 219713), (130, 169010), (260, 84505), (325, 67604), (650, 33802), (1300, 16901)]