21513136

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{3209}}^1$

素因数の和:3636

約数の個数: 20

約数和(自身を含む): 41794200

約数和(自身を除く): 20281064

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3209, 3352, 6418, 6704, 12836, 25672, 51344, 1344571, 2689142, 5378284, 10756568, 21513136]

約数ペア:

[(1, 21513136), (2, 10756568), (4, 5378284), (8, 2689142), (16, 1344571), (419, 51344), (838, 25672), (1676, 12836), (3209, 6704), (3352, 6418)]