20688450918

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1375379}}^1$

素因数の和:1375516

約数の個数: 32

約数和(自身を含む): 43572038400

約数和(自身を除く): 22883587482

約数列:

[1, 2, 3, 6, 23, 46, 69, 109, 138, 218, 327, 654, 2507, 5014, 7521, 15042, 1375379, 2750758, 4126137, 8252274, 31633717, 63267434, 94901151, 149916311, 189802302, 299832622, 449748933, 899497866, 3448075153, 6896150306, 10344225459, 20688450918]

約数ペア:

[(1, 20688450918), (2, 10344225459), (3, 6896150306), (6, 3448075153), (23, 899497866), (46, 449748933), (69, 299832622), (109, 189802302), (138, 149916311), (218, 94901151), (327, 63267434), (654, 31633717), (2507, 8252274), (5014, 4126137), (7521, 2750758), (15042, 1375379)]