30757839

素因数分解:

$3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 48614400

約数和(自身を除く): 17856561

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 343, 421, 497, 1029, 1263, 1491, 2947, 3479, 8841, 10437, 20629, 24353, 29891, 61887, 73059, 89673, 144403, 209237, 433209, 627711, 1464659, 4393977, 10252613, 30757839]

約数ペア:

[(1, 30757839), (3, 10252613), (7, 4393977), (21, 1464659), (49, 627711), (71, 433209), (147, 209237), (213, 144403), (343, 89673), (421, 73059), (497, 61887), (1029, 29891), (1263, 24353), (1491, 20629), (2947, 10437), (3479, 8841)]