21749248

素因数分解:

$2^9\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:522

約数の個数: 40

約数和(自身を含む): 43972632

約数和(自身を除く): 22223384

約数列:

[1, 2, 4, 8, 16, 32, 64, 107, 128, 214, 256, 397, 428, 512, 794, 856, 1588, 1712, 3176, 3424, 6352, 6848, 12704, 13696, 25408, 27392, 42479, 50816, 54784, 84958, 101632, 169916, 203264, 339832, 679664, 1359328, 2718656, 5437312, 10874624, 21749248]

約数ペア:

[(1, 21749248), (2, 10874624), (4, 5437312), (8, 2718656), (16, 1359328), (32, 679664), (64, 339832), (107, 203264), (128, 169916), (214, 101632), (256, 84958), (397, 54784), (428, 50816), (512, 42479), (794, 27392), (856, 25408), (1588, 13696), (1712, 12704), (3176, 6848), (3424, 6352)]