18505949

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1613}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 23241600

約数和(自身を除く): 4735651

約数列:

[1, 7, 11, 77, 149, 1043, 1613, 1639, 11291, 11473, 17743, 124201, 240337, 1682359, 2643707, 18505949]

約数ペア:

[(1, 18505949), (7, 2643707), (11, 1682359), (77, 240337), (149, 124201), (1043, 17743), (1613, 11473), (1639, 11291)]