21253278

素因数分解:

$2^1\times 3^1\times {\mathrm{1097}}^1\times {\mathrm{3229}}^1$

素因数の和:4331

約数の個数: 16

約数和(自身を含む): 42558480

約数和(自身を除く): 21305202

約数列:

[1, 2, 3, 6, 1097, 2194, 3229, 3291, 6458, 6582, 9687, 19374, 3542213, 7084426, 10626639, 21253278]

約数ペア:

[(1, 21253278), (2, 10626639), (3, 7084426), (6, 3542213), (1097, 19374), (2194, 9687), (3229, 6582), (3291, 6458)]