21180533

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{347}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 24053760

約数和(自身を除く): 2873227

約数列:

[1, 11, 31, 179, 341, 347, 1969, 3817, 5549, 10757, 61039, 62113, 118327, 683243, 1925503, 21180533]

約数ペア:

[(1, 21180533), (11, 1925503), (31, 683243), (179, 118327), (341, 62113), (347, 61039), (1969, 10757), (3817, 5549)]