21815542

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{29401}}^1$

素因数の和:29463

約数の個数: 16

約数和(自身を含む): 38104992

約数和(自身を除く): 16289450

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 29401, 58802, 205807, 411614, 1558253, 3116506, 10907771, 21815542]

約数ペア:

[(1, 21815542), (2, 10907771), (7, 3116506), (14, 1558253), (53, 411614), (106, 205807), (371, 58802), (742, 29401)]