209888973

素因数分解:

$3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{7589}}^1$

素因数の和:8041

約数の個数: 24

約数和(自身を含む): 347318400

約数和(自身を除く): 137429427

約数列:

[1, 3, 7, 9, 21, 63, 439, 1317, 3073, 3951, 7589, 9219, 22767, 27657, 53123, 68301, 159369, 478107, 3331571, 9994713, 23320997, 29984139, 69962991, 209888973]

約数ペア:

[(1, 209888973), (3, 69962991), (7, 29984139), (9, 23320997), (21, 9994713), (63, 3331571), (439, 478107), (1317, 159369), (3073, 68301), (3951, 53123), (7589, 27657), (9219, 22767)]