20511344

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4259}}^1$

素因数の和:4317

約数の個数: 40

約数和(自身を含む): 46485120

約数和(自身を除く): 25973776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4259, 4816, 8518, 17036, 29813, 34072, 59626, 68144, 119252, 183137, 238504, 366274, 477008, 732548, 1281959, 1465096, 2563918, 2930192, 5127836, 10255672, 20511344]

約数ペア:

[(1, 20511344), (2, 10255672), (4, 5127836), (7, 2930192), (8, 2563918), (14, 1465096), (16, 1281959), (28, 732548), (43, 477008), (56, 366274), (86, 238504), (112, 183137), (172, 119252), (301, 68144), (344, 59626), (602, 34072), (688, 29813), (1204, 17036), (2408, 8518), (4259, 4816)]