398601

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:75

約数の個数: 40

約数和(自身を含む): 735680

約数和(自身を除く): 337079

約数列:

[1, 3, 7, 9, 19, 21, 27, 37, 57, 63, 81, 111, 133, 171, 189, 259, 333, 399, 513, 567, 703, 777, 999, 1197, 1539, 2109, 2331, 2997, 3591, 4921, 6327, 6993, 10773, 14763, 18981, 20979, 44289, 56943, 132867, 398601]

約数ペア:

[(1, 398601), (3, 132867), (7, 56943), (9, 44289), (19, 20979), (21, 18981), (27, 14763), (37, 10773), (57, 6993), (63, 6327), (81, 4921), (111, 3591), (133, 2997), (171, 2331), (189, 2109), (259, 1539), (333, 1197), (399, 999), (513, 777), (567, 703)]