21136720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24019}}^1$

素因数の和:24043

約数の個数: 40

約数和(自身を含む): 53612640

約数和(自身を除く): 32475920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24019, 48038, 96076, 120095, 192152, 240190, 264209, 384304, 480380, 528418, 960760, 1056836, 1321045, 1921520, 2113672, 2642090, 4227344, 5284180, 10568360, 21136720]

約数ペア:

[(1, 21136720), (2, 10568360), (4, 5284180), (5, 4227344), (8, 2642090), (10, 2113672), (11, 1921520), (16, 1321045), (20, 1056836), (22, 960760), (40, 528418), (44, 480380), (55, 384304), (80, 264209), (88, 240190), (110, 192152), (176, 120095), (220, 96076), (440, 48038), (880, 24019)]