19767728

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{23311}}^1$

素因数の和:23372

約数の個数: 20

約数和(自身を含む): 39024288

約数和(自身を除く): 19256560

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 23311, 46622, 93244, 186488, 372976, 1235483, 2470966, 4941932, 9883864, 19767728]

約数ペア:

[(1, 19767728), (2, 9883864), (4, 4941932), (8, 2470966), (16, 1235483), (53, 372976), (106, 186488), (212, 93244), (424, 46622), (848, 23311)]