21245330

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1402

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 19252078

約数列:

[1, 2, 5, 10, 23, 46, 71, 115, 142, 230, 355, 710, 1301, 1633, 2602, 3266, 6505, 8165, 13010, 16330, 29923, 59846, 92371, 149615, 184742, 299230, 461855, 923710, 2124533, 4249066, 10622665, 21245330]

約数ペア:

[(1, 21245330), (2, 10622665), (5, 4249066), (10, 2124533), (23, 923710), (46, 461855), (71, 299230), (115, 184742), (142, 149615), (230, 92371), (355, 59846), (710, 29923), (1301, 16330), (1633, 13010), (2602, 8165), (3266, 6505)]