21399238

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{49307}}^1$

素因数の和:49347

約数の個数: 16

約数和(自身を含む): 37868544

約数和(自身を除く): 16469306

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 49307, 98614, 345149, 690298, 1528517, 3057034, 10699619, 21399238]

約数ペア:

[(1, 21399238), (2, 10699619), (7, 3057034), (14, 1528517), (31, 690298), (62, 345149), (217, 98614), (434, 49307)]