21337216

素因数分解:

$2^7\times {\mathrm{89}}^1\times {\mathrm{1873}}^1$

素因数の和:1976

約数の個数: 32

約数和(自身を含む): 43008300

約数和(自身を除く): 21671084

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 356, 712, 1424, 1873, 2848, 3746, 5696, 7492, 11392, 14984, 29968, 59936, 119872, 166697, 239744, 333394, 666788, 1333576, 2667152, 5334304, 10668608, 21337216]

約数ペア:

[(1, 21337216), (2, 10668608), (4, 5334304), (8, 2667152), (16, 1333576), (32, 666788), (64, 333394), (89, 239744), (128, 166697), (178, 119872), (356, 59936), (712, 29968), (1424, 14984), (1873, 11392), (2848, 7492), (3746, 5696)]