19980195

素因数分解:

$3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4283}}^1$

素因数の和:4602

約数の個数: 16

約数和(自身を含む): 32078592

約数和(自身を除く): 12098397

約数列:

[1, 3, 5, 15, 311, 933, 1555, 4283, 4665, 12849, 21415, 64245, 1332013, 3996039, 6660065, 19980195]

約数ペア:

[(1, 19980195), (3, 6660065), (5, 3996039), (15, 1332013), (311, 64245), (933, 21415), (1555, 12849), (4283, 4665)]