20888342

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:616

約数の個数: 24

約数和(自身を含む): 33819120

約数和(自身を除く): 12930778

約数列:

[1, 2, 17, 34, 71, 142, 289, 509, 578, 1018, 1207, 2414, 8653, 17306, 20519, 36139, 41038, 72278, 147101, 294202, 614363, 1228726, 10444171, 20888342]

約数ペア:

[(1, 20888342), (2, 10444171), (17, 1228726), (34, 614363), (71, 294202), (142, 147101), (289, 72278), (509, 41038), (578, 36139), (1018, 20519), (1207, 17306), (2414, 8653)]