21503838

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{8513}}^1$

素因数の和:8939

約数の個数: 16

約数和(自身を含む): 43114896

約数和(自身を除く): 21611058

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 8513, 17026, 25539, 51078, 3583973, 7167946, 10751919, 21503838]

約数ペア:

[(1, 21503838), (2, 10751919), (3, 7167946), (6, 3583973), (421, 51078), (842, 25539), (1263, 17026), (2526, 8513)]