21368152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205463}}^1$

素因数の和:205482

約数の個数: 16

約数和(自身を含む): 43147440

約数和(自身を除く): 21779288

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205463, 410926, 821852, 1643704, 2671019, 5342038, 10684076, 21368152]

約数ペア:

[(1, 21368152), (2, 10684076), (4, 5342038), (8, 2671019), (13, 1643704), (26, 821852), (52, 410926), (104, 205463)]