20786178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{751}}^1$

素因数の和:1422

約数の個数: 32

約数和(自身を含む): 47646720

約数和(自身を除く): 26860542

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 659, 751, 1318, 1502, 1977, 2253, 3954, 4506, 4613, 5257, 9226, 10514, 13839, 15771, 27678, 31542, 494909, 989818, 1484727, 2969454, 3464363, 6928726, 10393089, 20786178]

約数ペア:

[(1, 20786178), (2, 10393089), (3, 6928726), (6, 3464363), (7, 2969454), (14, 1484727), (21, 989818), (42, 494909), (659, 31542), (751, 27678), (1318, 15771), (1502, 13839), (1977, 10514), (2253, 9226), (3954, 5257), (4506, 4613)]