21309392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1933}}^1$

素因数の和:2007

約数の個数: 40

約数和(自身を含む): 45325224

約数和(自身を除く): 24015832

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1933, 2756, 3866, 5512, 7732, 11024, 15464, 25129, 30928, 50258, 100516, 102449, 201032, 204898, 402064, 409796, 819592, 1331837, 1639184, 2663674, 5327348, 10654696, 21309392]

約数ペア:

[(1, 21309392), (2, 10654696), (4, 5327348), (8, 2663674), (13, 1639184), (16, 1331837), (26, 819592), (52, 409796), (53, 402064), (104, 204898), (106, 201032), (208, 102449), (212, 100516), (424, 50258), (689, 30928), (848, 25129), (1378, 15464), (1933, 11024), (2756, 7732), (3866, 5512)]