20360823

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 32409600

約数和(自身を除く): 12048777

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 343, 421, 987, 1029, 1263, 2303, 2947, 6909, 8841, 16121, 19787, 20629, 48363, 59361, 61887, 138509, 144403, 415527, 433209, 969563, 2908689, 6786941, 20360823]

約数ペア:

[(1, 20360823), (3, 6786941), (7, 2908689), (21, 969563), (47, 433209), (49, 415527), (141, 144403), (147, 138509), (329, 61887), (343, 59361), (421, 48363), (987, 20629), (1029, 19787), (1263, 16121), (2303, 8841), (2947, 6909)]