21190617

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5701}}^1$

素因数の和:5773

約数の個数: 24

約数和(自身を含む): 35580480

約数和(自身を除く): 14389863

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5701, 17103, 39907, 51309, 119721, 336359, 359163, 1009077, 2354513, 3027231, 7063539, 21190617]

約数ペア:

[(1, 21190617), (3, 7063539), (7, 3027231), (9, 2354513), (21, 1009077), (59, 359163), (63, 336359), (177, 119721), (413, 51309), (531, 39907), (1239, 17103), (3717, 5701)]