21428854

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{6971}}^1$

素因数の和:7055

約数の個数: 16

約数和(自身を含む): 33883920

約数和(自身を除く): 12455066

約数列:

[1, 2, 29, 53, 58, 106, 1537, 3074, 6971, 13942, 202159, 369463, 404318, 738926, 10714427, 21428854]

約数ペア:

[(1, 21428854), (2, 10714427), (29, 738926), (53, 404318), (58, 369463), (106, 202159), (1537, 13942), (3074, 6971)]