21745070

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19078930

約数列:

[1, 2, 5, 10, 29, 58, 145, 167, 290, 334, 449, 835, 898, 1670, 2245, 4490, 4843, 9686, 13021, 24215, 26042, 48430, 65105, 74983, 130210, 149966, 374915, 749830, 2174507, 4349014, 10872535, 21745070]

約数ペア:

[(1, 21745070), (2, 10872535), (5, 4349014), (10, 2174507), (29, 749830), (58, 374915), (145, 149966), (167, 130210), (290, 74983), (334, 65105), (449, 48430), (835, 26042), (898, 24215), (1670, 13021), (2245, 9686), (4490, 4843)]