21109260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8581}}^1$

素因数の和:8634

約数の個数: 48

約数和(自身を含む): 60554592

約数和(自身を除く): 39445332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 8581, 17162, 25743, 34324, 42905, 51486, 85810, 102972, 128715, 171620, 257430, 351821, 514860, 703642, 1055463, 1407284, 1759105, 2110926, 3518210, 4221852, 5277315, 7036420, 10554630, 21109260]

約数ペア:

[(1, 21109260), (2, 10554630), (3, 7036420), (4, 5277315), (5, 4221852), (6, 3518210), (10, 2110926), (12, 1759105), (15, 1407284), (20, 1055463), (30, 703642), (41, 514860), (60, 351821), (82, 257430), (123, 171620), (164, 128715), (205, 102972), (246, 85810), (410, 51486), (492, 42905), (615, 34324), (820, 25743), (1230, 17162), (2460, 8581)]