21479095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2621}}^1$

素因数の和:2786

約数の個数: 16

約数和(自身を含む): 28317600

約数和(自身を除く): 6838505

約数列:

[1, 5, 11, 55, 149, 745, 1639, 2621, 8195, 13105, 28831, 144155, 390529, 1952645, 4295819, 21479095]

約数ペア:

[(1, 21479095), (5, 4295819), (11, 1952645), (55, 390529), (149, 144155), (745, 28831), (1639, 13105), (2621, 8195)]