20976128

素因数分解:

$2^9\times {\mathrm{53}}^1\times {\mathrm{773}}^1$

素因数の和:844

約数の個数: 40

約数和(自身を含む): 42757308

約数和(自身を除く): 21781180

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 424, 512, 773, 848, 1546, 1696, 3092, 3392, 6184, 6784, 12368, 13568, 24736, 27136, 40969, 49472, 81938, 98944, 163876, 197888, 327752, 395776, 655504, 1311008, 2622016, 5244032, 10488064, 20976128]

約数ペア:

[(1, 20976128), (2, 10488064), (4, 5244032), (8, 2622016), (16, 1311008), (32, 655504), (53, 395776), (64, 327752), (106, 197888), (128, 163876), (212, 98944), (256, 81938), (424, 49472), (512, 40969), (773, 27136), (848, 24736), (1546, 13568), (1696, 12368), (3092, 6784), (3392, 6184)]