21255633

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5531}}^1$

素因数の和:5605

約数の個数: 24

約数和(自身を含む): 35670336

約数和(自身を除く): 14414703

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5531, 16593, 38717, 49779, 116151, 337391, 348453, 1012173, 2361737, 3036519, 7085211, 21255633]

約数ペア:

[(1, 21255633), (3, 7085211), (7, 3036519), (9, 2361737), (21, 1012173), (61, 348453), (63, 337391), (183, 116151), (427, 49779), (549, 38717), (1281, 16593), (3843, 5531)]