21157888

素因数分解:

$2^{11}\times {\mathrm{10331}}^1$

素因数の和:10353

約数の個数: 24

約数和(自身を含む): 42309540

約数和(自身を除く): 21151652

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 10331, 20662, 41324, 82648, 165296, 330592, 661184, 1322368, 2644736, 5289472, 10578944, 21157888]

約数ペア:

[(1, 21157888), (2, 10578944), (4, 5289472), (8, 2644736), (16, 1322368), (32, 661184), (64, 330592), (128, 165296), (256, 82648), (512, 41324), (1024, 20662), (2048, 10331)]