31190981787

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{661}}^1\times {\mathrm{2393}}^1$

素因数の和:3380

約数の個数: 48

約数和(自身を含む): 51754143168

約数和(自身を除く): 20563161381

約数列:

[1, 3, 7, 9, 21, 63, 313, 661, 939, 1983, 2191, 2393, 2817, 4627, 5949, 6573, 7179, 13881, 16751, 19719, 21537, 41643, 50253, 150759, 206893, 620679, 749009, 1448251, 1581773, 1862037, 2247027, 4344753, 4745319, 5243063, 6741081, 11072411, 13034259, 14235957, 15729189, 33217233, 47187567, 99651699, 495094949, 1485284847, 3465664643, 4455854541, 10396993929, 31190981787]

約数ペア:

[(1, 31190981787), (3, 10396993929), (7, 4455854541), (9, 3465664643), (21, 1485284847), (63, 495094949), (313, 99651699), (661, 47187567), (939, 33217233), (1983, 15729189), (2191, 14235957), (2393, 13034259), (2817, 11072411), (4627, 6741081), (5949, 5243063), (6573, 4745319), (7179, 4344753), (13881, 2247027), (16751, 1862037), (19719, 1581773), (21537, 1448251), (41643, 749009), (50253, 620679), (150759, 206893)]