21139360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12011}}^1$

素因数の和:12037

約数の個数: 48

約数和(自身を含む): 54486432

約数和(自身を除く): 33347072

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12011, 24022, 48044, 60055, 96088, 120110, 132121, 192176, 240220, 264242, 384352, 480440, 528484, 660605, 960880, 1056968, 1321210, 1921760, 2113936, 2642420, 4227872, 5284840, 10569680, 21139360]

約数ペア:

[(1, 21139360), (2, 10569680), (4, 5284840), (5, 4227872), (8, 2642420), (10, 2113936), (11, 1921760), (16, 1321210), (20, 1056968), (22, 960880), (32, 660605), (40, 528484), (44, 480440), (55, 384352), (80, 264242), (88, 240220), (110, 192176), (160, 132121), (176, 120110), (220, 96088), (352, 60055), (440, 48044), (880, 24022), (1760, 12011)]