81999405

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3511}}^1$

素因数の和:3698

約数の個数: 32

約数和(自身を含む): 146661120

約数和(自身を除く): 64661715

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 1557, 2595, 3511, 4671, 7785, 10533, 17555, 23355, 31599, 52665, 94797, 157995, 473985, 607403, 1822209, 3037015, 5466627, 9111045, 16399881, 27333135, 81999405]

約数ペア:

[(1, 81999405), (3, 27333135), (5, 16399881), (9, 9111045), (15, 5466627), (27, 3037015), (45, 1822209), (135, 607403), (173, 473985), (519, 157995), (865, 94797), (1557, 52665), (2595, 31599), (3511, 23355), (4671, 17555), (7785, 10533)]