21805312

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4483}}^1$

素因数の和:4518

約数の個数: 36

約数和(自身を含む): 45826480

約数和(自身を除く): 24021168

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4483, 4864, 8966, 17932, 35864, 71728, 85177, 143456, 170354, 286912, 340708, 573824, 681416, 1147648, 1362832, 2725664, 5451328, 10902656, 21805312]

約数ペア:

[(1, 21805312), (2, 10902656), (4, 5451328), (8, 2725664), (16, 1362832), (19, 1147648), (32, 681416), (38, 573824), (64, 340708), (76, 286912), (128, 170354), (152, 143456), (256, 85177), (304, 71728), (608, 35864), (1216, 17932), (2432, 8966), (4483, 4864)]