21698378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{9377}}^1$

素因数の和:9481

約数の個数: 16

約数和(自身を含む): 35448840

約数和(自身を除く): 13750462

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 9377, 18754, 121901, 243802, 834553, 1669106, 10849189, 21698378]

約数ペア:

[(1, 21698378), (2, 10849189), (13, 1669106), (26, 834553), (89, 243802), (178, 121901), (1157, 18754), (2314, 9377)]