648143468

素因数分解:

$2^2\times 7^1\times {\mathrm{1237}}^1\times {\mathrm{18713}}^1$

素因数の和:19961

約数の個数: 24

約数和(自身を含む): 1297404192

約数和(自身を除く): 649260724

約数列:

[1, 2, 4, 7, 14, 28, 1237, 2474, 4948, 8659, 17318, 18713, 34636, 37426, 74852, 130991, 261982, 523964, 23147981, 46295962, 92591924, 162035867, 324071734, 648143468]

約数ペア:

[(1, 648143468), (2, 324071734), (4, 162035867), (7, 92591924), (14, 46295962), (28, 23147981), (1237, 523964), (2474, 261982), (4948, 130991), (8659, 74852), (17318, 37426), (18713, 34636)]