551498997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{6089}}^1$

素因数の和:6345

約数の個数: 32

約数和(自身を含む): 888652800

約数和(自身を除く): 337153803

約数列:

[1, 3, 7, 19, 21, 57, 133, 227, 399, 681, 1589, 4313, 4767, 6089, 12939, 18267, 30191, 42623, 90573, 115691, 127869, 347073, 809837, 1382203, 2429511, 4146609, 9675421, 26261857, 29026263, 78785571, 183832999, 551498997]

約数ペア:

[(1, 551498997), (3, 183832999), (7, 78785571), (19, 29026263), (21, 26261857), (57, 9675421), (133, 4146609), (227, 2429511), (399, 1382203), (681, 809837), (1589, 347073), (4313, 127869), (4767, 115691), (6089, 90573), (12939, 42623), (18267, 30191)]