21369838

素因数分解:

$2^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{3643}}^1$

素因数の和:4071

約数の個数: 16

約数和(自身を含む): 36731520

約数和(自身を除く): 15361682

約数列:

[1, 2, 7, 14, 419, 838, 2933, 3643, 5866, 7286, 25501, 51002, 1526417, 3052834, 10684919, 21369838]

約数ペア:

[(1, 21369838), (2, 10684919), (7, 3052834), (14, 1526417), (419, 51002), (838, 25501), (2933, 7286), (3643, 5866)]