21508298

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90371}}^1$

素因数の和:90397

約数の個数: 16

約数和(自身を含む): 39040704

約数和(自身を除く): 17532406

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90371, 180742, 632597, 1265194, 1536307, 3072614, 10754149, 21508298]

約数ペア:

[(1, 21508298), (2, 10754149), (7, 3072614), (14, 1536307), (17, 1265194), (34, 632597), (119, 180742), (238, 90371)]