21318465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1063}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 39223296

約数和(自身を除く): 17904831

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 191, 573, 955, 1063, 1337, 2865, 3189, 4011, 5315, 6685, 7441, 15945, 20055, 22323, 37205, 111615, 203033, 609099, 1015165, 1421231, 3045495, 4263693, 7106155, 21318465]

約数ペア:

[(1, 21318465), (3, 7106155), (5, 4263693), (7, 3045495), (15, 1421231), (21, 1015165), (35, 609099), (105, 203033), (191, 111615), (573, 37205), (955, 22323), (1063, 20055), (1337, 15945), (2865, 7441), (3189, 6685), (4011, 5315)]