217815890

素因数分解:

$2^1\times 5^1\times {\mathrm{3271}}^1\times {\mathrm{6659}}^1$

素因数の和:9937

約数の個数: 16

約数和(自身を含む): 392247360

約数和(自身を除く): 174431470

約数列:

[1, 2, 5, 10, 3271, 6542, 6659, 13318, 16355, 32710, 33295, 66590, 21781589, 43563178, 108907945, 217815890]

約数ペア:

[(1, 217815890), (2, 108907945), (5, 43563178), (10, 21781589), (3271, 66590), (6542, 33295), (6659, 32710), (13318, 16355)]