21483956

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:612

約数の個数: 36

約数和(自身を含む): 41458284

約数和(自身を除く): 19974328

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 169, 244, 338, 521, 676, 793, 1042, 1586, 2084, 3172, 6773, 10309, 13546, 20618, 27092, 31781, 41236, 63562, 88049, 127124, 176098, 352196, 413153, 826306, 1652612, 5370989, 10741978, 21483956]

約数ペア:

[(1, 21483956), (2, 10741978), (4, 5370989), (13, 1652612), (26, 826306), (52, 413153), (61, 352196), (122, 176098), (169, 127124), (244, 88049), (338, 63562), (521, 41236), (676, 31781), (793, 27092), (1042, 20618), (1586, 13546), (2084, 10309), (3172, 6773)]