320983257

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1\times {\mathrm{811}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 501387264

約数和(自身を除く): 180404007

約数列:

[1, 3, 7, 21, 47, 141, 329, 401, 811, 987, 1203, 2433, 2807, 5677, 8421, 17031, 18847, 38117, 56541, 114351, 131929, 266819, 325211, 395787, 800457, 975633, 2276477, 6829431, 15284917, 45854751, 106994419, 320983257]

約数ペア:

[(1, 320983257), (3, 106994419), (7, 45854751), (21, 15284917), (47, 6829431), (141, 2276477), (329, 975633), (401, 800457), (811, 395787), (987, 325211), (1203, 266819), (2433, 131929), (2807, 114351), (5677, 56541), (8421, 38117), (17031, 18847)]