21691890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21911}}^1$

素因数の和:21935

約数の個数: 48

約数和(自身を含む): 61528896

約数和(自身を除く): 39837006

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21911, 43822, 65733, 109555, 131466, 197199, 219110, 241021, 328665, 394398, 482042, 657330, 723063, 985995, 1205105, 1446126, 1971990, 2169189, 2410210, 3615315, 4338378, 7230630, 10845945, 21691890]

約数ペア:

[(1, 21691890), (2, 10845945), (3, 7230630), (5, 4338378), (6, 3615315), (9, 2410210), (10, 2169189), (11, 1971990), (15, 1446126), (18, 1205105), (22, 985995), (30, 723063), (33, 657330), (45, 482042), (55, 394398), (66, 328665), (90, 241021), (99, 219110), (110, 197199), (165, 131466), (198, 109555), (330, 65733), (495, 43822), (990, 21911)]