20968488

素因数分解:

$2^3\times 3^2\times {\mathrm{181}}^1\times {\mathrm{1609}}^1$

素因数の和:1802

約数の個数: 48

約数和(自身を含む): 57138900

約数和(自身を除く): 36170412

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 181, 362, 543, 724, 1086, 1448, 1609, 1629, 2172, 3218, 3258, 4344, 4827, 6436, 6516, 9654, 12872, 13032, 14481, 19308, 28962, 38616, 57924, 115848, 291229, 582458, 873687, 1164916, 1747374, 2329832, 2621061, 3494748, 5242122, 6989496, 10484244, 20968488]

約数ペア:

[(1, 20968488), (2, 10484244), (3, 6989496), (4, 5242122), (6, 3494748), (8, 2621061), (9, 2329832), (12, 1747374), (18, 1164916), (24, 873687), (36, 582458), (72, 291229), (181, 115848), (362, 57924), (543, 38616), (724, 28962), (1086, 19308), (1448, 14481), (1609, 13032), (1629, 12872), (2172, 9654), (3218, 6516), (3258, 6436), (4344, 4827)]