21186428

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{839}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 16915972

約数列:

[1, 2, 4, 59, 107, 118, 214, 236, 428, 839, 1678, 3356, 6313, 12626, 25252, 49501, 89773, 99002, 179546, 198004, 359092, 5296607, 10593214, 21186428]

約数ペア:

[(1, 21186428), (2, 10593214), (4, 5296607), (59, 359092), (107, 198004), (118, 179546), (214, 99002), (236, 89773), (428, 49501), (839, 25252), (1678, 12626), (3356, 6313)]