21910784

素因数分解:

$2^8\times 7^1\times {\mathrm{12227}}^1$

素因数の和:12250

約数の個数: 36

約数和(自身を含む): 49988064

約数和(自身を除く): 28077280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 12227, 24454, 48908, 85589, 97816, 171178, 195632, 342356, 391264, 684712, 782528, 1369424, 1565056, 2738848, 3130112, 5477696, 10955392, 21910784]

約数ペア:

[(1, 21910784), (2, 10955392), (4, 5477696), (7, 3130112), (8, 2738848), (14, 1565056), (16, 1369424), (28, 782528), (32, 684712), (56, 391264), (64, 342356), (112, 195632), (128, 171178), (224, 97816), (256, 85589), (448, 48908), (896, 24454), (1792, 12227)]