21637144

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51031}}^1$

素因数の和:51090

約数の個数: 16

約数和(自身を含む): 41335920

約数和(自身を除く): 19698776

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51031, 102062, 204124, 408248, 2704643, 5409286, 10818572, 21637144]

約数ペア:

[(1, 21637144), (2, 10818572), (4, 5409286), (8, 2704643), (53, 408248), (106, 204124), (212, 102062), (424, 51031)]