74172721

素因数分解:

$7^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 32

約数和(自身を含む): 91238400

約数和(自身を除く): 17065679

約数列:

[1, 7, 43, 47, 49, 107, 301, 329, 343, 749, 2021, 2107, 2303, 4601, 5029, 5243, 14147, 14749, 16121, 32207, 35203, 36701, 99029, 216247, 225449, 246421, 693203, 1513729, 1578143, 1724947, 10596103, 74172721]

約数ペア:

[(1, 74172721), (7, 10596103), (43, 1724947), (47, 1578143), (49, 1513729), (107, 693203), (301, 246421), (329, 225449), (343, 216247), (749, 99029), (2021, 36701), (2107, 35203), (2303, 32207), (4601, 16121), (5029, 14749), (5243, 14147)]