20765481

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11167959

約数列:

[1, 3, 11, 23, 33, 69, 109, 251, 253, 327, 753, 759, 1199, 2507, 2761, 3597, 5773, 7521, 8283, 17319, 27359, 27577, 63503, 82077, 82731, 190509, 300949, 629257, 902847, 1887771, 6921827, 20765481]

約数ペア:

[(1, 20765481), (3, 6921827), (11, 1887771), (23, 902847), (33, 629257), (69, 300949), (109, 190509), (251, 82731), (253, 82077), (327, 63503), (753, 27577), (759, 27359), (1199, 17319), (2507, 8283), (2761, 7521), (3597, 5773)]